/// <summary>
/// Makes an array of NoteRepresentations to form a triad.
/// </summary>
private NoteRepresentation[] MakeTriad(NoteRepresentation rep, TriadType type, TriadInversion inv = TriadInversion.Root)
{
switch (type)
{
case TriadType.Major:
switch (inv)
{
case TriadInversion.Root:
return rep.MakeGroup(Interval.MajorThird, Interval.PerfectFifth);
case TriadInversion.First:
return rep.MakeGroup(Interval.MinorThird, Interval.MinorSixth);
case TriadInversion.Second:
return rep.MakeGroup(Interval.PerfectFourth, Interval.MajorSixth);
}
break;
case TriadType.Minor:
switch (inv)
{
case TriadInversion.Root:
return rep.MakeGroup(Interval.MinorThird, Interval.PerfectFifth);
case TriadInversion.First:
return rep.MakeGroup(Interval.MajorThird, Interval.MajorSixth);
case TriadInversion.Second:
return rep.MakeGroup(Interval.PerfectFourth, Interval.MinorSixth);
}
break;
case TriadType.Diminished: // since diminished and augmented triads are symmetrical, they don't invert.
return rep.MakeGroup(Interval.MinorThird, Interval.DiminishedFifth);
case TriadType.Augmented:
return rep.MakeGroup(Interval.MajorThird, Interval.AugmentedFifth);
}
return null;
}
/// <summary>
/// Make a group of note representations using this one as the bottom and applying
/// a list of intervals. For example, passing in a major third and a perfect fifth
/// will return the representations for a major chord.
/// </summary>
/// <returns>The requested representations, or Null, if the requested intervals point to notes that can't be represented
/// using supported enharmonic representations (for example, an A# major chord
/// would return null, since the system doesn't support C## for the third.)</returns>
public NoteRepresentation[] MakeGroup(params Interval[] intervals)
{
var result = new NoteRepresentation[intervals.Length + 1];
result[0] = this;
for (int i = 0; i < intervals.Length; i++)
{
var rep = this.AddInterval(intervals[i]);
if (rep == null)
return null; // there's at least one non-representable note in this group, so don't do it.
result[i + 1] = rep;
}
return result;
}
/// <summary>
/// Creates a new StaffNote.
/// </summary>
public StaffNote(NoteRepresentation noteRepresentation, Staff staff)
{
Staff = staff;
NoteRepresentation = noteRepresentation;
}
