added addController to Sequence/music track
added addController to Sequence/music track

eljeff/AudioKit,adamnemecek/AudioKit,audiokit/AudioKit,eljeff/AudioKit,eljeff/AudioKit,audiokit/AudioKit,adamnemecek/AudioKit,audiokit/AudioKit,audiokit/AudioKit,eljeff/AudioKit,adamnemecek/AudioKit,adamnemecek/AudioKit