scale: Ionian (major scale)
It starts from the first grade of major scale.
Structure: 2212221
Chord: C, Cmaj7, C6, C^, Cmaj7(9), C^9, C6/9
It starts from the first grade of major scale.
Structure: 2212221
Chord: C, Cmaj7, C6, C^, Cmaj7(9), C^9, C6/9
