/apidocs/echonest.audio.AudioQuantum-class.html

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  41.       <span class="breadcrumbs">
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  42.         <a href="echonest-module.html">Package&nbsp;echonest</a> ::
    43. 

  43.         <a href="echonest.audio-module.html">Module&nbsp;audio</a> ::
    44. 

  44.         Class&nbsp;AudioQuantum
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  45.       </span>
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  46.     </td>
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  47.     <td>
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  49.         <!-- hide/show private -->
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  50.         <tr><td align="right"><span class="options">[<a href="javascript:void(0);" class="privatelink"
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  51.     onclick="toggle_private();">hide&nbsp;private</a>]</span></td></tr>
    52. 

  52.         <tr><td align="right"><span class="options"
    53. 

  53.             >[<a href="frames.html" target="_top">frames</a
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  54.             >]&nbsp;|&nbsp;<a href="echonest.audio.AudioQuantum-class.html"
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  55.             target="_top">no&nbsp;frames</a>]</span></td></tr>
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  56.       </table>
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  57.     </td>
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  58.   </tr>
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  59. </table>
    60. 

  60. <!-- ==================== CLASS DESCRIPTION ==================== -->
    61. 

  61. <h1 class="epydoc">Class AudioQuantum</h1><p class="nomargin-top"><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum">source&nbsp;code</a></span></p>
    62. 

  62. <center>
    63. 

  63. 

  64. </center>
    65. 

  65. <hr />
    66. 

  66. <p>A unit of musical time, identified at minimum with a start time and
    67. 

  67. a duration, both in seconds. It most often corresponds with a <code class="link">section</code>,
    68. 

  68. <code class="link">bar</code>, <code class="link">beat</code>, <code class="link">tatum</code>, or (by inheritance) <code class="link">segment</code> obtained from an Analyze
    69. 

  69. API call.</p>
    70. 

  70. <p>Additional properties include:</p>
    71. 

  71. <dl class="rst-docutils">
    72. 

  72. <dt>end</dt>
    73. 

  73. <dd>computed time offset for convenience: <code class="link">start</code> + <code class="link">duration</code></dd>
    74. 

  74. <dt>container</dt>
    75. 

  75. <dd>a circular reference to the containing <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a>,
    76. 

  76. created upon creation of the <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a> that covers
    77. 

  77. the whole track</dd>
    78. 

  78. </dl>
    79. 

  79. 

  80. <!-- ==================== INSTANCE METHODS ==================== -->
    81. 

  81. <a name="section-InstanceMethods"></a>
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  88.         <td align="left"><span class="table-header">Instance Methods</span></td>
    89. 

  89.         <td align="right" valign="top"
    90. 

  90.          ><span class="options">[<a href="#section-InstanceMethods"
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  91.          class="privatelink" onclick="toggle_private();"
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  92.          >hide private</a>]</span></td>
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  99.       <span class="summary-type">&nbsp;</span>
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  100.     </td><td class="summary">
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  101.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
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  102.         <tr>
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  103.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
    104. 

  104.         <span class="summary-sig-arg">start</span>=<span class="summary-sig-default">0</span>,
    105. 

  105.         <span class="summary-sig-arg">duration</span>=<span class="summary-sig-default">0</span>,
    106. 

  106.         <span class="summary-sig-arg">kind</span>=<span class="summary-sig-default">None</span>,
    107. 

  107.         <span class="summary-sig-arg">confidence</span>=<span class="summary-sig-default">None</span>,
    108. 

  108.         <span class="summary-sig-arg">source</span>=<span class="summary-sig-default">None</span>)</span><br />
    109. 

  109.       Initializes an <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a>.</td>
    110. 

  110.           <td align="right" valign="top">
    111. 

  111.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.__init__">source&nbsp;code</a></span>
    112. 

  112.             
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  113.           </td>
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  115.       </table>
    116. 

  116.       
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  117.     </td>
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  119. <tr>
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  120.     <td width="15%" align="right" valign="top" class="summary">
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  121.       <span class="summary-type">&nbsp;</span>
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  122.     </td><td class="summary">
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  123.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
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  124.         <tr>
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  125.           <td><span class="summary-sig"><a name="get_end"></a><span class="summary-sig-name">get_end</span>(<span class="summary-sig-arg">self</span>)</span></td>
    126. 

  126.           <td align="right" valign="top">
    127. 

  127.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.get_end">source&nbsp;code</a></span>
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  128.             
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  138.     </td><td class="summary">
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  139.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
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  141.           <td><span class="summary-sig"><a name="get_source"></a><span class="summary-sig-name">get_source</span>(<span class="summary-sig-arg">self</span>)</span><br />
    142. 

  142.       Returns itself or its parent.</td>
    143. 

  143.           <td align="right" valign="top">
    144. 

  144.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.get_source">source&nbsp;code</a></span>
    145. 

  145.             
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  146.           </td>
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  149.       
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  153.     <td width="15%" align="right" valign="top" class="summary">
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  154.       <span class="summary-type">&nbsp;</span>
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  155.     </td><td class="summary">
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  156.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
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  157.         <tr>
    158. 

  158.           <td><span class="summary-sig"><a name="set_source"></a><span class="summary-sig-name">set_source</span>(<span class="summary-sig-arg">self</span>,
    159. 

  159.         <span class="summary-sig-arg">value</span>)</span></td>
    160. 

  160.           <td align="right" valign="top">
    161. 

  161.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.set_source">source&nbsp;code</a></span>
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  162.             
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  163.           </td>
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  170.     <td width="15%" align="right" valign="top" class="summary">
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  171.       <span class="summary-type">&nbsp;</span>
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  172.     </td><td class="summary">
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  173.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
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    175. 

  175.           <td><span class="summary-sig"><a name="parent"></a><span class="summary-sig-name">parent</span>(<span class="summary-sig-arg">self</span>)</span><br />
    176. 

  176.       Returns the containing <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a> in the rhythm hierarchy:
    177. 

  177. a <code class="link">tatum</code> returns a <code class="link">beat</code>, a <code class="link">beat</code> returns a <code class="link">bar</code>, and a <code class="link">bar</code> returns a
    178. 

  178. <code class="link">section</code>.</td>
    179. 

  179.           <td align="right" valign="top">
    180. 

  180.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.parent">source&nbsp;code</a></span>
    181. 

  181.             
    182. 

  182.           </td>
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  183.         </tr>
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  184.       </table>
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  185.       
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  186.     </td>
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  187.   </tr>
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  188. <tr>
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  189.     <td width="15%" align="right" valign="top" class="summary">
    190. 

  190.       <span class="summary-type">&nbsp;</span>
    191. 

  191.     </td><td class="summary">
    192. 

  192.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    193. 

  193.         <tr>
    194. 

  194.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#children" class="summary-sig-name">children</a>(<span class="summary-sig-arg">self</span>)</span><br />
    195. 

  195.       Returns an <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a> of the AudioQuanta that it contains,
    196. 

  196. one step down the hierarchy.</td>
    197. 

  197.           <td align="right" valign="top">
    198. 

  198.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.children">source&nbsp;code</a></span>
    199. 

  199.             
    200. 

  200.           </td>
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  203.       
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  207.     <td width="15%" align="right" valign="top" class="summary">
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  208.       <span class="summary-type">&nbsp;</span>
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  209.     </td><td class="summary">
    210. 

  210.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    211. 

  211.         <tr>
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  212.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#group" class="summary-sig-name">group</a>(<span class="summary-sig-arg">self</span>)</span><br />
    213. 

  213.       Returns the <a href="echonest.audio.AudioQuantum-class.html#children" class="link">children</a>() of the <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a>'s <a href="echonest.audio.AudioQuantum-class.html#parent" class="link">parent</a>().</td>
    214. 

  214.           <td align="right" valign="top">
    215. 

  215.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.group">source&nbsp;code</a></span>
    216. 

  216.             
    217. 

  217.           </td>
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  218.         </tr>
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  219.       </table>
    220. 

  220.       
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  221.     </td>
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  222.   </tr>
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  223. <tr>
    224. 

  224.     <td width="15%" align="right" valign="top" class="summary">
    225. 

  225.       <span class="summary-type">&nbsp;</span>
    226. 

  226.     </td><td class="summary">
    227. 

  227.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    228. 

  228.         <tr>
    229. 

  229.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#prev" class="summary-sig-name">prev</a>(<span class="summary-sig-arg">self</span>,
    230. 

  230.         <span class="summary-sig-arg">step</span>=<span class="summary-sig-default">1</span>)</span><br />
    231. 

  231.       Step backwards in the containing <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a>.</td>
    232. 

  232.           <td align="right" valign="top">
    233. 

  233.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.prev">source&nbsp;code</a></span>
    234. 

  234.             
    235. 

  235.           </td>
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  236.         </tr>
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  237.       </table>
    238. 

  238.       
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  239.     </td>
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  240.   </tr>
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  241. <tr>
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  242.     <td width="15%" align="right" valign="top" class="summary">
    243. 

  243.       <span class="summary-type">&nbsp;</span>
    244. 

  244.     </td><td class="summary">
    245. 

  245.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    246. 

  246.         <tr>
    247. 

  247.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#next" class="summary-sig-name">next</a>(<span class="summary-sig-arg">self</span>,
    248. 

  248.         <span class="summary-sig-arg">step</span>=<span class="summary-sig-default">1</span>)</span><br />
    249. 

  249.       Step forward in the containing <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a>.</td>
    250. 

  250.           <td align="right" valign="top">
    251. 

  251.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.next">source&nbsp;code</a></span>
    252. 

  252.             
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  253.           </td>
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  254.         </tr>
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  255.       </table>
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  256.       
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  257.     </td>
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  258.   </tr>
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  259. <tr>
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  260.     <td width="15%" align="right" valign="top" class="summary">
    261. 

  261.       <span class="summary-type">&nbsp;</span>
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  262.     </td><td class="summary">
    263. 

  263.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    264. 

  264.         <tr>
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  265.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#__str__" class="summary-sig-name">__str__</a>(<span class="summary-sig-arg">self</span>)</span><br />
    266. 

  266.       Lists the <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a>.kind with start and
    267. 

  267. end times, in seconds, e.g.:</td>
    268. 

  268.           <td align="right" valign="top">
    269. 

  269.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.__str__">source&nbsp;code</a></span>
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  270.             
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  271.           </td>
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  274.       
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  278.     <td width="15%" align="right" valign="top" class="summary">
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  279.       <span class="summary-type">&nbsp;</span>
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  280.     </td><td class="summary">
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  281.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
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  283.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#__repr__" class="summary-sig-name">__repr__</a>(<span class="summary-sig-arg">self</span>)</span><br />
    284. 

  284.       A string representing a constructor, including kind, start time,
    285. 

  285. duration, and (if it exists) confidence, e.g.:</td>
    286. 

  286.           <td align="right" valign="top">
    287. 

  287.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.__repr__">source&nbsp;code</a></span>
    288. 

  288.             
    289. 

  289.           </td>
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  290.         </tr>
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  291.       </table>
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  292.       
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  293.     </td>
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  294.   </tr>
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  295. <tr>
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  296.     <td width="15%" align="right" valign="top" class="summary">
    297. 

  297.       <span class="summary-type">&nbsp;</span>
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  298.     </td><td class="summary">
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  299.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
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  301.           <td><span class="summary-sig"><a name="local_context"></a><span class="summary-sig-name">local_context</span>(<span class="summary-sig-arg">self</span>)</span><br />
    302. 

  302.       Returns a tuple of (<em>index</em>, <em>length</em>) within rhythm siblings, where
    303. 

  303. <em>index</em> is the (zero-indexed) position within its <a href="echonest.audio.AudioQuantum-class.html#group" class="link">group</a>(), and
    304. 

  304. <em>length</em> is the number of siblings within its <a href="echonest.audio.AudioQuantum-class.html#group" class="link">group</a>().</td>
    305. 

  305.           <td align="right" valign="top">
    306. 

  306.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.local_context">source&nbsp;code</a></span>
    307. 

  307.             
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  308.           </td>
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  316.       <span class="summary-type">&nbsp;</span>
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  320.           <td><span class="summary-sig"><a name="absolute_context"></a><span class="summary-sig-name">absolute_context</span>(<span class="summary-sig-arg">self</span>)</span><br />
    321. 

  321.       Returns a tuple of (<em>index</em>, <em>length</em>) within the containing
    322. 

  322. <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a>, where <em>index</em> is the (zero-indexed) position within
    323. 

  323. its container, and <em>length</em> is the number of siblings within the
    324. 

  324. container.</td>
    325. 

  325.           <td align="right" valign="top">
    326. 

  326.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.absolute_context">source&nbsp;code</a></span>
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  327.             
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  335.     <td width="15%" align="right" valign="top" class="summary">
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  336.       <span class="summary-type">&nbsp;</span>
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    339. 

  339.         <tr>
    340. 

  340.           <td><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#context_string" class="summary-sig-name">context_string</a>(<span class="summary-sig-arg">self</span>)</span><br />
    341. 

  341.       Returns a one-indexed, human-readable version of context.</td>
    342. 

  342.           <td align="right" valign="top">
    343. 

  343.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.context_string">source&nbsp;code</a></span>
    344. 

  344.             
    345. 

  345.           </td>
    346. 

  346.         </tr>
    347. 

  347.       </table>
    348. 

  348.       
    349. 

  349.     </td>
    350. 

  350.   </tr>
    351. 

  351. <tr>
    352. 

  352.     <td width="15%" align="right" valign="top" class="summary">
    353. 

  353.       <span class="summary-type">&nbsp;</span>
    354. 

  354.     </td><td class="summary">
    355. 

  355.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    356. 

  356.         <tr>
    357. 

  357.           <td><span class="summary-sig"><a name="__getstate__"></a><span class="summary-sig-name">__getstate__</span>(<span class="summary-sig-arg">self</span>)</span><br />
    358. 

  358.       Eliminates the circular reference for pickling.</td>
    359. 

  359.           <td align="right" valign="top">
    360. 

  360.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.__getstate__">source&nbsp;code</a></span>
    361. 

  361.             
    362. 

  362.           </td>
    363. 

  363.         </tr>
    364. 

  364.       </table>
    365. 

  365.       
    366. 

  366.     </td>
    367. 

  367.   </tr>
    368. 

  368. <tr>
    369. 

  369.     <td width="15%" align="right" valign="top" class="summary">
    370. 

  370.       <span class="summary-type">&nbsp;</span>
    371. 

  371.     </td><td class="summary">
    372. 

  372.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    373. 

  373.         <tr>
    374. 

  374.           <td><span class="summary-sig"><a name="toxml"></a><span class="summary-sig-name">toxml</span>(<span class="summary-sig-arg">self</span>,
    375. 

  375.         <span class="summary-sig-arg">context</span>=<span class="summary-sig-default">None</span>)</span></td>
    376. 

  376.           <td align="right" valign="top">
    377. 

  377.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.toxml">source&nbsp;code</a></span>
    378. 

  378.             
    379. 

  379.           </td>
    380. 

  380.         </tr>
    381. 

  381.       </table>
    382. 

  382.       
    383. 

  383.     </td>
    384. 

  384.   </tr>
    385. 

  385. <tr>
    386. 

  386.     <td width="15%" align="right" valign="top" class="summary">
    387. 

  387.       <span class="summary-type">&nbsp;</span>
    388. 

  388.     </td><td class="summary">
    389. 

  389.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    390. 

  390.         <tr>
    391. 

  391.           <td><span class="summary-sig"><a name="render"></a><span class="summary-sig-name">render</span>(<span class="summary-sig-arg">self</span>,
    392. 

  392.         <span class="summary-sig-arg">start</span>=<span class="summary-sig-default">0.0</span>,
    393. 

  393.         <span class="summary-sig-arg">to_audio</span>=<span class="summary-sig-default">None</span>,
    394. 

  394.         <span class="summary-sig-arg">with_source</span>=<span class="summary-sig-default">None</span>)</span></td>
    395. 

  395.           <td align="right" valign="top">
    396. 

  396.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.render">source&nbsp;code</a></span>
    397. 

  397.             
    398. 

  398.           </td>
    399. 

  399.         </tr>
    400. 

  400.       </table>
    401. 

  401.       
    402. 

  402.     </td>
    403. 

  403.   </tr>
    404. 

  404.   <tr>
    405. 

  405.     <td colspan="2" class="summary">
    406. 

  406.     <p class="indent-wrapped-lines"><b>Inherited from <code><a href="echonest.audio.AudioRenderable-class.html">AudioRenderable</a></code></b>:
    407. 

  407.       <code><a href="echonest.audio.AudioRenderable-class.html#encode">encode</a></code>,
    408. 

  408.       <code><a href="echonest.audio.AudioRenderable-class.html#resolve_source">resolve_source</a></code>,
    409. 

  409.       <code><a href="echonest.audio.AudioRenderable-class.html#sources">sources</a></code>
    410. 

  410.       </p>
    411. 

  411.     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
    412. 

  412.       <code>__delattr__</code>,
    413. 

  413.       <code>__format__</code>,
    414. 

  414.       <code>__getattribute__</code>,
    415. 

  415.       <code>__hash__</code>,
    416. 

  416.       <code>__new__</code>,
    417. 

  417.       <code>__reduce__</code>,
    418. 

  418.       <code>__reduce_ex__</code>,
    419. 

  419.       <code>__setattr__</code>,
    420. 

  420.       <code>__sizeof__</code>,
    421. 

  421.       <code>__subclasshook__</code>
    422. 

  422.       </p>
    423. 

  423.     </td>
    424. 

  424.   </tr>
    425. 

  425. </table>
    426. 

  426. <!-- ==================== STATIC METHODS ==================== -->
    427. 

  427. <a name="section-StaticMethods"></a>
    428. 

  428. <table class="summary" border="1" cellpadding="3"
    429. 

  429.        cellspacing="0" width="100%" bgcolor="white">
    430. 

  430. <tr bgcolor="#70b0f0" class="table-header">
    431. 

  431.   <td colspan="2" class="table-header">
    432. 

  432.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    433. 

  433.       <tr valign="top">
    434. 

  434.         <td align="left"><span class="table-header">Static Methods</span></td>
    435. 

  435.         <td align="right" valign="top"
    436. 

  436.          ><span class="options">[<a href="#section-StaticMethods"
    437. 

  437.          class="privatelink" onclick="toggle_private();"
    438. 

  438.          >hide private</a>]</span></td>
    439. 

  439.       </tr>
    440. 

  440.     </table>
    441. 

  441.   </td>
    442. 

  442. </tr>
    443. 

  443.   <tr>
    444. 

  444.     <td colspan="2" class="summary">
    445. 

  445.     <p class="indent-wrapped-lines"><b>Inherited from <code><a href="echonest.audio.AudioRenderable-class.html">AudioRenderable</a></code></b>:
    446. 

  446.       <code><a href="echonest.audio.AudioRenderable-class.html#init_audio_data">init_audio_data</a></code>
    447. 

  447.       </p>
    448. 

  448.     </td>
    449. 

  449.   </tr>
    450. 

  450. </table>
    451. 

  451. <!-- ==================== PROPERTIES ==================== -->
    452. 

  452. <a name="section-Properties"></a>
    453. 

  453. <table class="summary" border="1" cellpadding="3"
    454. 

  454.        cellspacing="0" width="100%" bgcolor="white">
    455. 

  455. <tr bgcolor="#70b0f0" class="table-header">
    456. 

  456.   <td colspan="2" class="table-header">
    457. 

  457.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    458. 

  458.       <tr valign="top">
    459. 

  459.         <td align="left"><span class="table-header">Properties</span></td>
    460. 

  460.         <td align="right" valign="top"
    461. 

  461.          ><span class="options">[<a href="#section-Properties"
    462. 

  462.          class="privatelink" onclick="toggle_private();"
    463. 

  463.          >hide private</a>]</span></td>
    464. 

  464.       </tr>
    465. 

  465.     </table>
    466. 

  466.   </td>
    467. 

  467. </tr>
    468. 

  468. <tr>
    469. 

  469.     <td width="15%" align="right" valign="top" class="summary">
    470. 

  470.       <span class="summary-type">&nbsp;</span>
    471. 

  471.     </td><td class="summary">
    472. 

  472.         <a href="echonest.audio.AudioQuantum-class.html#end" class="summary-name">end</a><br />
    473. 

  473.       A computed property: the sum of <code class="link">start</code> and <code class="link">duration</code>.
    474. 

  474.     </td>
    475. 

  475.   </tr>
    476. 

  476. <tr>
    477. 

  477.     <td width="15%" align="right" valign="top" class="summary">
    478. 

  478.       <span class="summary-type">&nbsp;</span>
    479. 

  479.     </td><td class="summary">
    480. 

  480.         <a href="echonest.audio.AudioQuantum-class.html#source" class="summary-name">source</a><br />
    481. 

  481.       The <a href="echonest.audio.AudioData-class.html" class="link">AudioData</a> source for the AudioQuantum.
    482. 

  482.     </td>
    483. 

  483.   </tr>
    484. 

  484.   <tr>
    485. 

  485.     <td colspan="2" class="summary">
    486. 

  486.     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
    487. 

  487.       <code>__class__</code>
    488. 

  488.       </p>
    489. 

  489.     </td>
    490. 

  490.   </tr>
    491. 

  491. </table>
    492. 

  492. <!-- ==================== METHOD DETAILS ==================== -->
    493. 

  493. <a name="section-MethodDetails"></a>
    494. 

  494. <table class="details" border="1" cellpadding="3"
    495. 

  495.        cellspacing="0" width="100%" bgcolor="white">
    496. 

  496. <tr bgcolor="#70b0f0" class="table-header">
    497. 

  497.   <td colspan="2" class="table-header">
    498. 

  498.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    499. 

  499.       <tr valign="top">
    500. 

  500.         <td align="left"><span class="table-header">Method Details</span></td>
    501. 

  501.         <td align="right" valign="top"
    502. 

  502.          ><span class="options">[<a href="#section-MethodDetails"
    503. 

  503.          class="privatelink" onclick="toggle_private();"
    504. 

  504.          >hide private</a>]</span></td>
    505. 

  505.       </tr>
    506. 

  506.     </table>
    507. 

  507.   </td>
    508. 

  508. </tr>
    509. 

  509. </table>
    510. 

  510. <a name="__init__"></a>
    511. 

  511. <div>
    512. 

  512. <table class="details" border="1" cellpadding="3"
    513. 

  513.        cellspacing="0" width="100%" bgcolor="white">
    514. 

  514. <tr><td>
    515. 

  515.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    516. 

  516.   <tr valign="top"><td>
    517. 

  517.   <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
    518. 

  518.         <span class="sig-arg">start</span>=<span class="sig-default">0</span>,
    519. 

  519.         <span class="sig-arg">duration</span>=<span class="sig-default">0</span>,
    520. 

  520.         <span class="sig-arg">kind</span>=<span class="sig-default">None</span>,
    521. 

  521.         <span class="sig-arg">confidence</span>=<span class="sig-default">None</span>,
    522. 

  522.         <span class="sig-arg">source</span>=<span class="sig-default">None</span>)</span>
    523. 

  523.     <br /><em class="fname">(Constructor)</em>
    524. 

  524.   </h3>
    525. 

  525.   </td><td align="right" valign="top"
    526. 

  526.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.__init__">source&nbsp;code</a></span>&nbsp;
    527. 

  527.     </td>
    528. 

  528.   </tr></table>
    529. 

  529.   
    530. 

  530.   Initializes an <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a>.
    531. 

  531.   <dl class="fields">
    532. 

  532.     <dt>Parameters:</dt>
    533. 

  533.     <dd><ul class="nomargin-top">
    534. 

  534.         <li><strong class="pname"><code>start</code></strong> - offset from the start of the track, in seconds</li>
    535. 

  535.         <li><strong class="pname"><code>duration</code></strong> - length of the <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a></li>
    536. 

  536.         <li><strong class="pname"><code>kind</code></strong> - string containing what kind of rhythm unit it came from</li>
    537. 

  537.         <li><strong class="pname"><code>confidence</code></strong> - float between zero and one</li>
    538. 

  538.     </ul></dd>
    539. 

  539.     <dt>Overrides:
    540. 

  540.         object.__init__
    541. 

  541.     </dt>
    542. 

  542.   </dl>
    543. 

  543. </td></tr></table>
    544. 

  544. </div>
    545. 

  545. <a name="children"></a>
    546. 

  546. <div>
    547. 

  547. <table class="details" border="1" cellpadding="3"
    548. 

  548.        cellspacing="0" width="100%" bgcolor="white">
    549. 

  549. <tr><td>
    550. 

  550.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    551. 

  551.   <tr valign="top"><td>
    552. 

  552.   <h3 class="epydoc"><span class="sig"><span class="sig-name">children</span>(<span class="sig-arg">self</span>)</span>
    553. 

  553.   </h3>
    554. 

  554.   </td><td align="right" valign="top"
    555. 

  555.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.children">source&nbsp;code</a></span>&nbsp;
    556. 

  556.     </td>
    557. 

  557.   </tr></table>
    558. 

  558.   
    559. 

  559.   Returns an <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a> of the AudioQuanta that it contains,
    560. 

  560. one step down the hierarchy. A <code class="link">beat</code> returns <code class="link">tatums</code>, a <code class="link">bar</code> returns
    561. 

  561. <code class="link">beats</code>, and a <code class="link">section</code> returns <code class="link">bars</code>.
    562. 

  562.   <dl class="fields">
    563. 

  563.   </dl>
    564. 

  564. </td></tr></table>
    565. 

  565. </div>
    566. 

  566. <a name="group"></a>
    567. 

  567. <div>
    568. 

  568. <table class="details" border="1" cellpadding="3"
    569. 

  569.        cellspacing="0" width="100%" bgcolor="white">
    570. 

  570. <tr><td>
    571. 

  571.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    572. 

  572.   <tr valign="top"><td>
    573. 

  573.   <h3 class="epydoc"><span class="sig"><span class="sig-name">group</span>(<span class="sig-arg">self</span>)</span>
    574. 

  574.   </h3>
    575. 

  575.   </td><td align="right" valign="top"
    576. 

  576.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.group">source&nbsp;code</a></span>&nbsp;
    577. 

  577.     </td>
    578. 

  578.   </tr></table>
    579. 

  579.   
    580. 

  580.   Returns the <a href="echonest.audio.AudioQuantum-class.html#children" class="link">children</a>() of the <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a>'s <a href="echonest.audio.AudioQuantum-class.html#parent" class="link">parent</a>().
    581. 

  581. In other words: 'siblings'. If no parent is found, then return the
    582. 

  582. <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a> for the whole track.
    583. 

  583.   <dl class="fields">
    584. 

  584.   </dl>
    585. 

  585. </td></tr></table>
    586. 

  586. </div>
    587. 

  587. <a name="prev"></a>
    588. 

  588. <div>
    589. 

  589. <table class="details" border="1" cellpadding="3"
    590. 

  590.        cellspacing="0" width="100%" bgcolor="white">
    591. 

  591. <tr><td>
    592. 

  592.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    593. 

  593.   <tr valign="top"><td>
    594. 

  594.   <h3 class="epydoc"><span class="sig"><span class="sig-name">prev</span>(<span class="sig-arg">self</span>,
    595. 

  595.         <span class="sig-arg">step</span>=<span class="sig-default">1</span>)</span>
    596. 

  596.   </h3>
    597. 

  597.   </td><td align="right" valign="top"
    598. 

  598.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.prev">source&nbsp;code</a></span>&nbsp;
    599. 

  599.     </td>
    600. 

  600.   </tr></table>
    601. 

  601.   
    602. 

  602.   Step backwards in the containing <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a>.
    603. 

  603. Returns <code class="link">self</code> if a boundary is reached.
    604. 

  604.   <dl class="fields">
    605. 

  605.   </dl>
    606. 

  606. </td></tr></table>
    607. 

  607. </div>
    608. 

  608. <a name="next"></a>
    609. 

  609. <div>
    610. 

  610. <table class="details" border="1" cellpadding="3"
    611. 

  611.        cellspacing="0" width="100%" bgcolor="white">
    612. 

  612. <tr><td>
    613. 

  613.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    614. 

  614.   <tr valign="top"><td>
    615. 

  615.   <h3 class="epydoc"><span class="sig"><span class="sig-name">next</span>(<span class="sig-arg">self</span>,
    616. 

  616.         <span class="sig-arg">step</span>=<span class="sig-default">1</span>)</span>
    617. 

  617.   </h3>
    618. 

  618.   </td><td align="right" valign="top"
    619. 

  619.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.next">source&nbsp;code</a></span>&nbsp;
    620. 

  620.     </td>
    621. 

  621.   </tr></table>
    622. 

  622.   
    623. 

  623.   Step forward in the containing <a href="echonest.audio.AudioQuantumList-class.html" class="link">AudioQuantumList</a>.
    624. 

  624. Returns <code class="link">self</code> if a boundary is reached.
    625. 

  625.   <dl class="fields">
    626. 

  626.   </dl>
    627. 

  627. </td></tr></table>
    628. 

  628. </div>
    629. 

  629. <a name="__str__"></a>
    630. 

  630. <div>
    631. 

  631. <table class="details" border="1" cellpadding="3"
    632. 

  632.        cellspacing="0" width="100%" bgcolor="white">
    633. 

  633. <tr><td>
    634. 

  634.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    635. 

  635.   <tr valign="top"><td>
    636. 

  636.   <h3 class="epydoc"><span class="sig"><span class="sig-name">__str__</span>(<span class="sig-arg">self</span>)</span>
    637. 

  637.     <br /><em class="fname">(Informal representation operator)</em>
    638. 

  638.   </h3>
    639. 

  639.   </td><td align="right" valign="top"
    640. 

  640.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.__str__">source&nbsp;code</a></span>&nbsp;
    641. 

  641.     </td>
    642. 

  642.   </tr></table>
    643. 

  643.   
    644. 

  644.   <p>Lists the <a href="echonest.audio.AudioQuantum-class.html" class="link">AudioQuantum</a>.kind with start and
    645. 

  645. end times, in seconds, e.g.:</p>
    646. 

  646. <pre class="rst-literal-block">
    647. 

  647. &quot;segment (20.31 - 20.42)&quot;
    648. 

  648. </pre>
    649. 

  649.   <dl class="fields">
    650. 

  650.     <dt>Overrides:
    651. 

  651.         object.__str__
    652. 

  652.     </dt>
    653. 

  653.   </dl>
    654. 

  654. </td></tr></table>
    655. 

  655. </div>
    656. 

  656. <a name="__repr__"></a>
    657. 

  657. <div>
    658. 

  658. <table class="details" border="1" cellpadding="3"
    659. 

  659.        cellspacing="0" width="100%" bgcolor="white">
    660. 

  660. <tr><td>
    661. 

  661.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    662. 

  662.   <tr valign="top"><td>
    663. 

  663.   <h3 class="epydoc"><span class="sig"><span class="sig-name">__repr__</span>(<span class="sig-arg">self</span>)</span>
    664. 

  664.     <br /><em class="fname">(Representation operator)</em>
    665. 

  665.   </h3>
    666. 

  666.   </td><td align="right" valign="top"
    667. 

  667.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.__repr__">source&nbsp;code</a></span>&nbsp;
    668. 

  668.     </td>
    669. 

  669.   </tr></table>
    670. 

  670.   
    671. 

  671.   <p>A string representing a constructor, including kind, start time,
    672. 

  672. duration, and (if it exists) confidence, e.g.:</p>
    673. 

  673. <pre class="rst-literal-block">
    674. 

  674. &quot;AudioQuantum(kind='tatum', start=42.198267, duration=0.1523394)&quot;
    675. 

  675. </pre>
    676. 

  676.   <dl class="fields">
    677. 

  677.     <dt>Overrides:
    678. 

  678.         object.__repr__
    679. 

  679.     </dt>
    680. 

  680.   </dl>
    681. 

  681. </td></tr></table>
    682. 

  682. </div>
    683. 

  683. <a name="context_string"></a>
    684. 

  684. <div>
    685. 

  685. <table class="details" border="1" cellpadding="3"
    686. 

  686.        cellspacing="0" width="100%" bgcolor="white">
    687. 

  687. <tr><td>
    688. 

  688.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    689. 

  689.   <tr valign="top"><td>
    690. 

  690.   <h3 class="epydoc"><span class="sig"><span class="sig-name">context_string</span>(<span class="sig-arg">self</span>)</span>
    691. 

  691.   </h3>
    692. 

  692.   </td><td align="right" valign="top"
    693. 

  693.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioQuantum.context_string">source&nbsp;code</a></span>&nbsp;
    694. 

  694.     </td>
    695. 

  695.   </tr></table>
    696. 

  696.   
    697. 

  697.   <p>Returns a one-indexed, human-readable version of context.
    698. 

  698. For example:</p>
    699. 

  699. <pre class="rst-literal-block">
    700. 

  700. &quot;bar 4 of 142, beat 3 of 4, tatum 2 of 3&quot;
    701. 

  701. </pre>
    702. 

  702.   <dl class="fields">
    703. 

  703.   </dl>
    704. 

  704. </td></tr></table>
    705. 

  705. </div>
    706. 

  706. <br />
    707. 

  707. <!-- ==================== PROPERTY DETAILS ==================== -->
    708. 

  708. <a name="section-PropertyDetails"></a>
    709. 

  709. <table class="details" border="1" cellpadding="3"
    710. 

  710.        cellspacing="0" width="100%" bgcolor="white">
    711. 

  711. <tr bgcolor="#70b0f0" class="table-header">
    712. 

  712.   <td colspan="2" class="table-header">
    713. 

  713.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    714. 

  714.       <tr valign="top">
    715. 

  715.         <td align="left"><span class="table-header">Property Details</span></td>
    716. 

  716.         <td align="right" valign="top"
    717. 

  717.          ><span class="options">[<a href="#section-PropertyDetails"
    718. 

  718.          class="privatelink" onclick="toggle_private();"
    719. 

  719.          >hide private</a>]</span></td>
    720. 

  720.       </tr>
    721. 

  721.     </table>
    722. 

  722.   </td>
    723. 

  723. </tr>
    724. 

  724. </table>
    725. 

  725. <a name="end"></a>
    726. 

  726. <div>
    727. 

  727. <table class="details" border="1" cellpadding="3"
    728. 

  728.        cellspacing="0" width="100%" bgcolor="white">
    729. 

  729. <tr><td>
    730. 

  730.   <h3 class="epydoc">end</h3>
    731. 

  731.   A computed property: the sum of <code class="link">start</code> and <code class="link">duration</code>.
    732. 

  732.   <dl class="fields">
    733. 

  733.     <dt>Get Method:</dt>
    734. 

  734.     <dd class="value"><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#get_end" class="summary-sig-name">get_end</a>(<span class="summary-sig-arg">self</span>)</span>
    735. 

  735.     </dd>
    736. 

  736.   </dl>
    737. 

  737. </td></tr></table>
    738. 

  738. </div>
    739. 

  739. <a name="source"></a>
    740. 

  740. <div>
    741. 

  741. <table class="details" border="1" cellpadding="3"
    742. 

  742.        cellspacing="0" width="100%" bgcolor="white">
    743. 

  743. <tr><td>
    744. 

  744.   <h3 class="epydoc">source</h3>
    745. 

  745.   The <a href="echonest.audio.AudioData-class.html" class="link">AudioData</a> source for the AudioQuantum.
    746. 

  746.   <dl class="fields">
    747. 

  747.     <dt>Get Method:</dt>
    748. 

  748.     <dd class="value"><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#get_source" class="summary-sig-name">get_source</a>(<span class="summary-sig-arg">self</span>)</span>
    749. 

  749.         - Returns itself or its parent.
    750. 

  750.     </dd>
    751. 

  751.     <dt>Set Method:</dt>
    752. 

  752.     <dd class="value"><span class="summary-sig"><a href="echonest.audio.AudioQuantum-class.html#set_source" class="summary-sig-name">set_source</a>(<span class="summary-sig-arg">self</span>,
    753. 

  753.         <span class="summary-sig-arg">value</span>)</span>
    754. 

  754.     </dd>
    755. 

  755.   </dl>
    756. 

  756. </td></tr></table>
    757. 

  757. </div>
    758. 

  758. <br />
    759. 

  759. <!-- ==================== NAVIGATION BAR ==================== -->
    760. 

  760. <table class="navbar" border="0" width="100%" cellpadding="0"
    761. 

  761.        bgcolor="#a0c0ff" cellspacing="0">
    762. 

  762.   <tr valign="middle">
    763. 

  763. 

  764.   <!-- Tree link -->
    765. 

  765.       <th>&nbsp;&nbsp;&nbsp;<a
    766. 

  766.         href="module-tree.html">Trees</a>&nbsp;&nbsp;&nbsp;</th>
    767. 

  767. 

  768.   <!-- Index link -->
    769. 

  769.       <th>&nbsp;&nbsp;&nbsp;<a
    770. 

  770.         href="identifier-index.html">Indices</a>&nbsp;&nbsp;&nbsp;</th>
    771. 

  771. 

  772.   <!-- Help link -->
    773. 

  773.       <th>&nbsp;&nbsp;&nbsp;<a
    774. 

  774.         href="help.html">Help</a>&nbsp;&nbsp;&nbsp;</th>
    775. 

  775. 

  776.   <!-- Project homepage -->
    777. 

  777.       <th class="navbar" align="right" width="100%">
    778. 

  778.         <table border="0" cellpadding="0" cellspacing="0">
    779. 

  779.           <tr><th class="navbar" align="center"
    780. 

  780.             ><a class="navbar" target="_top" href="http://code.google.com/p/echo-nest-remix/">Project Homepage</a></th>
    781. 

  781.           </tr></table></th>
    782. 

  782.   </tr>
    783. 

  783. </table>
    784. 

  784. <table border="0" cellpadding="0" cellspacing="0" width="100%%">
    785. 

  785.   <tr>
    786. 

  786.     <td align="left" class="footer">
    787. 

  787.     Generated by Epydoc 3.0.1 on Wed Sep  1 16:08:58 2010
    788. 

  788.     </td>
    789. 

  789.     <td align="right" class="footer">
    790. 

  790.       <a target="mainFrame" href="http://epydoc.sourceforge.net"
    791. 

  791.         >http://epydoc.sourceforge.net</a>
    792. 

  792.     </td>
    793. 

  793.   </tr>
    794. 

  794. </table>
    795. 

  795. 

  796. <script type="text/javascript">
    797. 

  797.   <!--
    798. 

  798.   // Private objects are initially displayed (because if
    799. 

  799.   // javascript is turned off then we want them to be
    800. 

  800.   // visible); but by default, we want to hide them.  So hide
    801. 

  801.   // them unless we have a cookie that says to show them.
    802. 

  802.   checkCookie();
    803. 

  803.   // -->
    804. 

  804. </script>
    805. 

  805. </body>
    806. 

  806. </html>
    807.