public void TwelveToneSetScaleTest()
{
// Check major and minor scale
Assert.AreEqual(new TwelveToneSet(new int[] { 0, 2, 4, 5, 7, 9, 11 }), TwelveToneSet.majorScale);
Assert.AreEqual(new TwelveToneSet(new int[] { 0, 2, 3, 5, 7, 8, 10 }), TwelveToneSet.minorScale);
//// Major and minor scale are different but similar
Assert.AreNotEqual(TwelveToneSet.majorScale, TwelveToneSet.minorScale);
Assert.IsTrue(TwelveToneSet.majorScale.IsSimilar(TwelveToneSet.minorScale));
// Minor, minor harmonic, minor melodic are NOT similar
Assert.IsFalse(TwelveToneSet.minorScale.IsSimilar(TwelveToneSet.minorHarmonicScale));
Assert.IsFalse(TwelveToneSet.minorScale.IsSimilar(TwelveToneSet.minorMelodicScale));
Assert.IsFalse(TwelveToneSet.minorHarmonicScale.IsSimilar(TwelveToneSet.minorMelodicScale));
// Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aoelian, Locrian
for (MusicalModes mode = MusicalModes.Ionian; mode <= MusicalModes.Locrian; mode++)
{
TwelveToneSet set = new TwelveToneSet(mode);
Assert.IsTrue(set.IsSimilar(TwelveToneSet.majorScale));
Assert.IsFalse(set.IsSimilar(TwelveToneSet.minorHarmonicScale));
Assert.IsFalse(set.IsSimilar(TwelveToneSet.minorMelodicScale));
}
}
public TwelveToneSet(MusicalModes mode) : this(majorScale)
{
if (mode == MusicalModes.Chromatic)
{
tones = 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 512 + 1024 + 2048;
return;
}
if (mode >= MusicalModes.Dorian && mode <= MusicalModes.Locrian)
{
int shift = FindNth((int)mode - (int)MusicalModes.Ionian);
this = ShiftLeft(shift);
return;
}
MusicalModes modeShift = mode;
if (mode == MusicalModes.MinorHarmonic || mode == MusicalModes.MinorMelodic)
{
modeShift = MusicalModes.Minor;
}
int tone = FindNth((int)(modeShift) - 1);
ShiftLeft(tone);
if (mode == MusicalModes.MinorMelodic)
{
MakeSharp(4);
MakeSharp(5);
}
if (mode == MusicalModes.MinorHarmonic)
{
MakeSharp(5);
}
}