Build the diatonic triad rooted on a scale degree by stacking scale thirds.
Unlike chordFromDegree, the chord quality is derived from the scale
rather than supplied, so degrees yield their scale-correct triads (e.g. a
diminished triad on the leading tone of a major key). Intended for heptatonic
scales; other scales stack by scale step regardless.
Build the diatonic triad rooted on a scale degree by stacking scale thirds.
Unlike chordFromDegree, the chord quality is derived from the scale rather than supplied, so degrees yield their scale-correct triads (e.g. a diminished triad on the leading tone of a major key). Intended for heptatonic scales; other scales stack by scale step regardless.