Variables

The Javascript API can be used to control the playback of Tracks by selecting them using groups and values:

e.g.

<?xml version="1.0" encoding="UTF-8"?>
<imusic version="1.0" tempo="60" timeSign="4/4">
  <arrangement>
    <track select-group="intensity" select-value="1" src="audio/loop1.mp3" selected="true"></track>
    <track select-group="intensity" select-value="2" src="audio/loop2.mp3"></track>
    <track select-group="intensity" select-value="3" src="audio/loop3.mp3"></track>
    <track select-group="intensity" select-value="4" src="audio/loop4.mp3"></track>
  </arrangement>
</imusic>

To solo a track in the group (= muting the others), just call iMusic.select(groupName, value) with the select-group name and value. Note: The change happens at the next barline if nothing else is specified.

iMusic.select("intensity", 2);