Channel
constructor(sample: Int = 0, period: Int = 214, voiceperiod: Double = 214.0, note: Int = 24, volume: Int = 64, command: Int = 0, data: Int = 0, samplepos: Double = 0.0, samplespeed: Double = 0.0, flags: Int = 0, noteon: Int = 0, slidespeed: Int = 0, slideto: Int = 214, slidetospeed: Int = 0, arpeggio: Int = 0, semitone: Double = 12.0, vibratospeed: Int = 0, vibratodepth: Int = 0, vibratopos: Int = 0, vibratowave: Int = 0)