HarmoniHue

Geometry of scales and chords

Scales and chords show interesting patterns on the circle of fifths (All these are based on A as the root note, but transposition is just a rotation operation so generates the same shapes):

ScaleNotesSemitonesFifthsTorus
Major A B C# D E F# Ab
Minor A B C D E F Ab
Pentatonic A B C# E F#
ChordNotesSemitonesFifthsTorus
7 A C# E G
Aug A C# F
Dim A C Eb
Maj A C# E
Maj7 A C# E Ab
Min A C E
Min7 A C E G
Sus2 A B E
Sus4 A D E

© David Fraser 2013