I have been looking at Glen Rhodes MixerSequencer.fla and I tried to change it from a multi mp3 file player into a multi loop player by changing this
mc.s.start((bar * msPerBar) / 1000);
to this
mc.s.start((bar * msPerBar) / 1000, 99);
after this is declared
tempoBPM = 94.25;
msPerBar = 240000 / tempoBPM;
Should this just work?