notes-Mitchell57

Chord

Stores a list of notes

Chord Names

• Key (required)
  • (A-G)
• Sign
  • (#, b, n)
• Quality
  • Major (maj, M)
  • Minor (min, m, -)
  • Diminished (dim, o)
  • Augmented (aug, +, +5)
  • Suspended (sus2, sus4)
• Extensions
  • (7, 9, 11, 13)
• Alterations
  • (#5, #9, b5, b9)
• Added Tones
  • add + (2, 4, 6, 8, 9)
• Slash Chords
  • / + (A-G)
  • Specifies inversion, e.g. “F/C”

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Constructors

Chord(string name, int octave=3)

• Input: Chord name as string, e.g. Chord(“CM7”)

Chord(Note* root, string name, int octave=3)

• e.g. Chord(&note, “dim7”)

Chord(vector<int> idxs)

• Used by Scale for building scale chords

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Accessors

chord.getNotes()

• returns vector of Notes

chord.degree(theory::chord_degree)

• returns Note at specified degree

• degrees: root, third, fifth, seventh, ninth, eleventh, thirteenth

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Modifiers

chord.invert(int inversion=1)

• moves the bottom note up an octave

chord.drop(chord_degree)

• moves the specified degree down an octave

• default: moves whole chord down an octave

chord.raise(chord_degree)

• moves the specified degree up an octave

• default: moves whole chord up an octave

chord.match(Chord source)

• moves chord tones to get average pitch closer to source average