public ISingleSound RaiseSemitones(int Semitones, Scale scale)
{
int octave = Octave;
int toneIndex = scale.ToneIndex(ToneClass);
int newToneIndex = toneIndex + Semitones;
while (newToneIndex < 0)
{
newToneIndex += scale.ToneCount();
octave--;
}
while (newToneIndex > scale.ToneCount())
{
newToneIndex -= scale.ToneCount();
octave++;
}
return(new Tone(scale.ToneAtIndex(newToneIndex), octave));
}
