public Song(AudioUnit.AUGraph graph, int ioNode)
{
this.ins = new ArrangementInstruments(r, graph, ioNode);
verse = new Section(r, ins);
var verseNotes = Chord.Diminished7.GetNotes(verse.Progression.KeyTonic).ToList();
var verseKey = verse.Progression.KeyTonic;
var chorusKey = PickRandom(verseNotes);
while (chorusKey == verseKey)
{
chorusKey = PickRandom(verseNotes);
}
chorusKey += 12 * (r.Next(2) - 1); // Compensate for always going up on the scale
var bridgeKey = PickRandom(verseNotes);
while (bridgeKey == verseKey || bridgeKey == chorusKey)
{
bridgeKey = PickRandom(verseNotes);
}
bridgeKey += 12 * (r.Next(2) - 1); // Compensate for always going up on the scale
chorus = new Section(r, ins, new ChordProgression(r, verse.Progression.Bpm, chorusKey, verse.Progression.EndVel, -1), verse.Melody.OctaveShift);
bridge = new Section(r, ins, new ChordProgression(r, verse.Progression.Bpm, bridgeKey, chorus.Progression.EndVel, verse.Progression.EndVel), verse.Melody.OctaveShift);
}
public Section(Random r, ArrangementInstruments ins, ChordProgression prog, int melodyOctave)
{
this.ins = ins;
Progression = prog;
Melody = new Melody(Progression, r, melodyOctave);
Bassline = new Bassline(Progression, r);
Percussion = new PercussionLine(Progression, r);
}
public Section(Random r, ArrangementInstruments ins)
: this(r, ins, new ChordProgression(r), Melody.PickOctave(r))
{
}