public void ScaleBuilder_GFlatMajor_Equivalent_To_FSharpMajor()
{
var gFlatMajor = new ScaleBuilder().FromPattern(MidiValue.GFlat3, WellKnownIntervalPattern.Major);
var fSharpMajor = new ScaleBuilder().FromPattern(MidiValue.FSharp3, WellKnownIntervalPattern.Major);
Assert.Equal(gFlatMajor, fSharpMajor);
}
public void Scale_Starts_And_Ends_With_Same_Note()
{
var scale = new ScaleBuilder().FromPattern(new Note((int)MidiValue.MiddleC), WellKnownIntervalPattern.Major, 2);
var firstNote = scale.Values.First();
var secondNote = scale.Values.Last();
Assert.Equal(firstNote.Name, secondNote.Name);
}
public void ScaleBuilder_DMinor_Scale_Contains_One_Accidental()
{
var scale = new ScaleBuilder().FromPattern(MidiValue.D3, WellKnownIntervalPattern.Minor);
Assert.Equal(MidiValue.D3, scale.Values.First().Value);
Assert.Equal(MidiValue.E3, scale.Values.Skip(1).First().Value);
Assert.Equal(MidiValue.F3, scale.Values.Skip(2).First().Value);
Assert.Equal(MidiValue.G3, scale.Values.Skip(3).First().Value);
Assert.Equal(MidiValue.A3, scale.Values.Skip(4).First().Value);
Assert.Equal(MidiValue.BFlat3, scale.Values.Skip(5).First().Value);
Assert.Equal(MidiValue.C4, scale.Values.Skip(6).First().Value);
}
public void ScaleBuilder_CMajor_Scale_Contains_No_Accidentals()
{
var scale = new ScaleBuilder().FromPattern(MidiValue.MiddleC, WellKnownIntervalPattern.Major);
Assert.Equal(MidiValue.MiddleC, scale.Values.First().Value);
Assert.Equal(MidiValue.D3, scale.Values.Skip(1).First().Value);
Assert.Equal(MidiValue.E3, scale.Values.Skip(2).First().Value);
Assert.Equal(MidiValue.F3, scale.Values.Skip(3).First().Value);
Assert.Equal(MidiValue.G3, scale.Values.Skip(4).First().Value);
Assert.Equal(MidiValue.A3, scale.Values.Skip(5).First().Value);
Assert.Equal(MidiValue.B3, scale.Values.Skip(6).First().Value);
}
public void Scale_Mode_C_Major_Ionian_Mode_Is_C()
{
var cMajor = new ScaleBuilder().FromPattern(MidiValue.MiddleC, WellKnownIntervalPattern.Major);
Assert.Equal("C", cMajor.Root().Name);
string[] dModal = new string[] { "C", "D", "E", "F", "G", "A", "B", "C" };
var modeNames = cMajor.ToMode(Mode.Ionian).Values.Select(n => n.Name);
Assert.True(modeNames.SequenceEqual(dModal));
}
public void C_Major_Scale_Two_Octave_Does_Not_Contain_Accidentals_Notes()
{
var dictionary = new ScaleBuilder();
var scale = dictionary.FromPattern(new Note((int)MidiValue.MiddleC), WellKnownIntervalPattern.Major, 2);
foreach (var pitch in scale.Values)
{
Assert.DoesNotContain("b", pitch.MidiName);
Assert.DoesNotContain("#", pitch.MidiName);
}
}
public void ScaleBuilder_Chromatic_Scale_Notes_Ascend_Separated_By_Semitone()
{
var scale = new ScaleBuilder().FromPattern(MidiValue.MiddleC, WellKnownIntervalPattern.Chromatic);
Note last = scale.Values.First();
foreach (var note in scale.Values.Skip(1))
{
Assert.True(note > last);
Assert.Equal(1, (note - last).Semitones);
last = note;
}
}
public void Scale_Transpose_Progresses_Around_Circle_Of_Fourths()
{
var cMajor = new ScaleBuilder().FromPattern(MidiValue.MiddleC, WellKnownIntervalPattern.Major);
Assert.Equal("C", cMajor.Root().Name);
string[] circleOfFourths = new string[] { "F", "A#", "D#", "G#", "C#", "F#", "B", "E", "A", "D", "G", "C" };
var start = cMajor;
foreach (string root in circleOfFourths)
{
var next = start.Transpose(Interval.Fourth);
Assert.Equal(root, next.Root().Name);
start = next;
}
}
public void Scale_Major_Solfege_Is_Classic_Do_Re_Mi()
{
var cMajor = new ScaleBuilder().FromPattern(MidiValue.MiddleC, WellKnownIntervalPattern.Major);
var majorSolfa = new Solfege[] {
Solfege.Do,
Solfege.Re,
Solfege.Mi,
Solfege.Fa,
Solfege.So,
Solfege.La,
Solfege.Ti,
Solfege.Do
};
var solfa = cMajor.AsSolfege();
Assert.True(solfa.SequenceEqual(majorSolfa));
}
