title: How to program a simple music sequencer for Android (Java)
body: <p><strong>What I want to do:</strong></p>
  
  <p>I would like to program a very simple music sequencer for Android. But I've never worked with audio on Android or in Java, respectively.</p>
  
  <p><strong>What the application should do:</strong></p>
  
  <ul>
  <li>play back samples (WAVE/OGG files)</li>
  <li>play several audio channels simultaneously (e.g. the trumpet and the flute should play simultaneously, maximum of 10 instruments)</li>
  <li>change the pitch of the samples (e.g. the trumpet WAVE file must be played in normal pitch (c4) and lower/higher pitch (e2/g6) and so on)</li>
  </ul>
  
  <p>This is what the application should be able to do in general.</p>
  
  <p>What components do I need? A normal media player (AudioManager?) won't work, right?</p>
  
  <p>There are already some applications which do what I am thinking about:</p>
  
  <ul>
  <li>FingerBeat for iOS</li>
  <li>FL Studio Mobile for iOS</li>
  <li>Uloops Studio for Android</li>
  </ul>
  
  <p>Thanks in advance for your help!</p>