Hierarchical Scheduling In JMSL

Here is a code excerpt that creates a ParallelCollection, a MusicShape, and a MusicJob. The MusicShape and the MusicJob are added as children of the ParallelCollection

ParallelCollection col = new ParallelCollection();
col.setRepeats(3);

MusicJob mj = new MusicJob();
mj.setRepeatPause(2.0);
mj.setRepeats(4);

MusicShape sh = new MusicShape(3);       
sh.add(1.0, 66, 120);    
sh.add(1.0, 67, 120);
sh.add(1.0, 68, 120);
sh.add(1.0, 69, 120);
sh.setRepeats(2);

col.add(mj);
col.add(sh);
col.launch(JMSL.now());