ceol

type Ceol struct {
	Version       int
	Swing         int
	Effect        int
	EffectValue   int
	Bpm           int
	PatternLength int
	BarLength     int
	Instruments   []Instrument
	Patterns      []Pattern
	LoopStart     int
	LoopEnd       int
	Arrangement   [][8]int
}

type Filter struct {
	Volume       int
	LPFCutoff    int
	LPFResonance int
}

type Instrument struct {
	Index        int
	IsDrumkit    int
	Palette      int
	LPFCutoff    int
	LPFResonance int
	Volume       int
}

type Note struct {
	PitchIndex int // C4 = 60
	Length     int
	Offset     int
}

type Pattern struct {
	Key        int
	Scale      int
	Instrument int
	Palette    int
	Notes      []Note
	Filters    []Filter
}