title: Libgdx get duration of a Music
body: <p>Im trying to get the duration of a Music, in libgdx</p>
  
  <p>Im <strong>not</strong> talking about :</p>
  
  <pre><code>getPosition();
  </code></pre>
  
  <p>What I want is the Duration of the music. (in seconds)</p>
  
  <p>Thanks</p>