Tones in a Major Bebop Scale : Root, Major 2nd (M2), Major 3rd (M3), Perfect 4th (P4), Perfect 5th (P5), Minor 6th (m6), Major 6th (M6), Major 7th (M7),
The bebop major scale or the major sixth diminished scale is derived from the Ionian mode (major scale) and has a chromatic passing tone between the 5th and 6th notes. Barry Harris explains that it is derived from a major sixth chord from the root, and a fully diminished chord from the second degree. This scale is often used over major sixth chords and major seventh chords.
