A bebop dorian

Construction

Step pattern (W = whole step, H = half step): W-H-W-W-W-H-H-H. Eight notes, expressed as intervals from the root: 1-2-b3-4-5-6-b7-7.

Bebop Dorian (also called Bebop Minor) is Dorian -- a minor mode with a natural 6 instead of the b6 found in natural minor -- with one added note: the major 7th. Like all bebop scales, that extra note creates an eight-note scale that aligns chord tones with downbeats in continuous eighth-note lines.

Origin and Relationships

• Built from Dorian (1-2-b3-4-5-6-b7) by inserting the major 7th between b7 and the octave. The 7 is not a chord tone -- it is a chromatic passing tone that completes the eight-note alignment.
• Another way to see it: bebop Dorian contains the same notes as bebop dominant started from the 2nd degree. Where bebop dominant serves dominant 7th chords from the root, bebop Dorian reorients those same notes to serve min7 chords.
• Compare to Bebop Dominant: both add the major 7th, but bebop Dorian starts from a minor base and serves min7 chords, while bebop dominant starts from Mixolydian and serves dominant 7th chords.

Harmonic Context

In Roman numeral analysis (uppercase = major, lowercase = minor):

• min7 (minor seventh): The primary chord. Ascending from 1 on beat 1, the downbeats land on 1-b3-5-b7 -- all four min7 chord tones.
• ii7 in major keys: Dorian is the standard scale over the ii chord in a ii-V-I progression (a foundational jazz chord movement from the minor ii chord through the dominant V to the tonic I). Bebop Dorian is the eighth-note vocabulary for that context.
• min9, min11, min13: These chords extend the min7 by stacking additional intervals (the 9th, 11th, and 13th). The scale contains all three -- 9 (2), 11 (4), and 13 (6) -- as upbeat tones.

Characteristic Tones

The intervals that give this scale its distinctive sound:

• 6 (natural sixth): The Dorian signature. Compare to Aeolian (natural minor, the standard minor scale): Dorian has a natural 6 where Aeolian has b6. That one interval is what gives Dorian its warmer, less melancholic character, and it carries through into the bebop version.
• b7 and 7 (the chromatic pair): The b7 is the chord tone; the 7 is strictly a passing tone. The cell b7-7-1 is the characteristic bebop approach to the root -- the same gesture found in bebop dominant.

Melodic Applications

Start on a chord tone on a downbeat and play continuous eighth notes -- the scale places 1-b3-5-b7 on strong beats automatically. The natural 6 keeps lines warm and distinctly Dorian throughout, separating this sound from darker Aeolian-based minor phrasing. Move through the 7 quickly toward the octave; it is a passing tone, not a destination.

Practice Seeds

Eighth-note alignment. Play the scale ascending from 1 on beat 1. Observe 1, b3, 5, and b7 landing on downbeats -- this is the chord-tone alignment that the added 7 creates.

The chromatic seventh. Isolate the cell b7-7-1 and weave it into improvised phrases over a min7 chord. Internalize this as the bebop approach to the root -- it should become automatic vocabulary.

Over ii-V-I. Play bebop Dorian over the ii7 chord in a major ii-V-I progression. Listen for how the natural 6 keeps the minor sound warm rather than dark -- this is Dorian character in action.

Compare to Dorian. Play Dorian over a min7 chord, then play bebop Dorian. Hear what one added note achieves -- rhythmic alignment without changing the harmonic identity of the line.