Construction
Step pattern (W = whole step, H = half step): W-W-H-W-H-H-W-H. Eight scale degrees: 1-2-3-4-5-#5-6-7.
Bebop major is the major scale with one added note: the #5 (the same pitch as b6, just spelled differently). This chromatic passing tone between 5 and 6 gives the scale eight notes. Like all bebop scales, the added note aligns chord tones with downbeats in continuous eighth-note lines.
Origin and Relationships
- Built from the major scale (1-2-3-4-5-6-7) by adding #5 between 5 and 6.
- The #5 is not a chord tone -- it is a chromatic bridge that creates even alternation between chord tones and passing tones. The 5-#5-6 motion briefly passes through melodic minor territory, connecting bebop major to that broader harmonic world.
- Compare to Bebop Dominant: bebop dominant adds 7 to Mixolydian and serves dominant chords, while bebop major adds #5 to the major scale and serves tonic major chords.
Harmonic Context
- maj6 (a major triad with an added 6th: 1-3-5-6): The strongest fit. Ascending from 1 on beat 1, the downbeats land on 1-3-5-6 -- all four chord tones. Jazz players often voice tonic major chords as maj6 rather than maj7 because the major 7th can clash with common melody notes, while the 6 sits comfortably below the octave.
- maj7 (a major triad with a major 7th: 1-3-5-7): Works well. The 7 falls on an upbeat in a strict ascending run from 1, but shifting your starting point can place it on a downbeat when needed.
- 6/9 (a major chord with both the 6th and 9th added: 1-3-5-6-9): A common tonic chord in jazz. The scale contains every chord tone -- the 9 appears as scale degree 2.
Characteristic Tones
The intervals that give this scale its distinctive sound:
- #5 (the added note): Creates the chromatic cell 5-#5-6. This is purely a passing tone -- it adds rhythmic flow without altering the harmony. Where the major scale has a whole step from 5 to 6, bebop major fills it with a chromatic half step.
- 6 (major sixth): A key chord tone that distinguishes tonic major bebop vocabulary. The 6 gives lines a warm, settled quality compared to the tension of the 7.
Melodic Applications
Play continuous eighth notes starting on a downbeat chord tone and the scale places 1-3-5-6 on strong beats throughout. The #5 is strictly a passing tone -- move through it quickly. This works in both ascending and descending lines; descending runs are especially common in bebop phrasing, where the 6-#5-5 motion creates smooth chromatic connection downward. Voice leading -- how individual notes move smoothly from one chord to the next -- is what makes the 5-#5-6 cell effective.
Practice Seeds
Eighth-note alignment. Play the scale ascending from 1 on beat 1. Observe 1, 3, 5, and 6 landing on downbeats -- this alignment is what the added #5 creates.
The chromatic bridge. Isolate the cell 5-#5-6 ascending and 6-#5-5 descending. Train the ear to hear #5 as motion, not a resting point -- this develops smooth bebop phrasing over major chords.
Compare to major scale. Play the major scale over a maj7 chord, then play bebop major. Listen for how one added note smooths the rhythmic flow without changing the harmonic feel.
Over tonic major. Improvise in continuous eighth notes over a maj6 or maj7 chord. Build the habit of landing on chord tones on downbeats -- this is where bebop lines get their clarity over major harmony.