Pash237

let sequencer = AKSequencer()
let track = sequencer.newTrack()
sequencer.setLength(AKDuration(seconds: 2.0))

track?.add(noteNumber: MIDINoteNumber(60),
           velocity: MIDIVelocity(100),
           position: AKDuration(seconds: 1, tempo: 120),
           duration: AKDuration(seconds: 0.5, tempo: 120))

try! sequencer.genData()!.write(to: url)