private Accidental GetAccidental(int index, int noteValue)
{
var pitchValue = (Mode.ModeIntervals[index].Semitones + Root.SemitonesAboveC).RollingRange(11);
var accidentalValue = (pitchValue - noteValue);
switch (accidentalValue)
{
case -11:
accidentalValue = 1;
break;
case -10:
accidentalValue = 2;
break;
case 11:
accidentalValue = -1;
break;
case 10:
accidentalValue = -2;
break;
}
return(Accidentals.Single(a => a.SemitonesAwayFromNatural == accidentalValue));
}
public Pitch GetPitchByIntervalBelow(Interval interval)
{
var noteIndex = (Note.Index() - (interval.NoteIndex - 1)).RollingRange(6);
var note = Utilities.GetNoteByIndex(noteIndex);
var semitones = SemitonesAboveC - interval.Semitones - note.SemitonesAboveC;
if (semitones < -2)
{
semitones += 12;
}
else if (semitones > 2)
{
semitones -= 12;
}
var accidental = Accidentals.Single(a => a.SemitonesAwayFromNatural == semitones);
return(new Pitch(note, accidental));
}