Formula
- Degrees: 1 b2 b3 4 5 6 b7.
- Steps: H W W W W H W (1 2 2 2 2 1 2 semitones).
- Parent scale: 2nd mode of melodic minor. D Dorian b2 = notes of C melodic minor from D: D Eb F G A B C.
- On C: C Db Eb F G A Bb (from Bb melodic minor). On E: E F G A B C# D (from D melodic minor).
Alternative names: Phrygian ♮6 (Phrygian with a major 6th), “Phrygian #6”, in some texts “Dorian b9”.
Characteristic note and color
It has two opposite colors together: the b2 of Phrygian (dark, tense) and the major 6th of Dorian (bright). The result is an ambiguous, exotic, suspended minor. Compared with Phrygian, the major 6th makes the mode less gloomy; compared with Dorian, the b2 adds tension.
Diatonic chords (C Dorian b2)
| Degree | Triad | Seventh |
|---|---|---|
| i | Cm | Cm7 |
| bII+ | Db+ | Dbmaj7#5 |
| bIII | Eb | Eb7 |
| IV | F | F7 |
| v° | G° | Gø7 |
| vi° | A° | Aø7 |
| bvii | Bbm | Bbm(maj7) |
The typical chord: sus4(b9)
In modern jazz, Dorian b2 is the scale of the 7sus4(b9) chord (often written “sus(b9)” or “Phrygian”): C7sus4(b9) = C F G Bb Db. This chord is a suspended dominant with a minor 9th; the classic voicing is a Db triad (or Dbmaj7) over the bass C: Db/C or Dbmaj7/C (the bII over the tonic). The sound is that of the modal vamps of McCoy Tyner, Herbie Hancock and Wayne Shorter in the 1960s and of contemporary jazz.
Over an m7 chord with b9 in a modal context (Cm7(b9)) Dorian b2 is the natural choice; but over a “normal” m7 the b2 becomes an avoid note.
Use in genres
- Modal jazz and post-bop: sus(b9) chords as suspended dominants (C7sus(b9) → Fm) or as static colors.
- Progressive rock and metal: Phrygian riffs with the major 6th, for a less “classic” Phrygian (often with a major IV: E – F – A in E Dorian b2 → the A major contains C#).
- Film and video game music: mysterious and exotic atmospheres, ostinatos alternating i and bII with the major 6th in the melody.
- Modern flamenco and fusion: alternation between Phrygian, Phrygian dominant and Phrygian ♮6.
Progressions and vamps
- i – bII with a melody on the major 6th: Em – F with C# in the melody (E Dorian b2).
- Tonic pedal with Db/C – Eb/C – Db/C in C: the sus(b9) vamp par excellence.
- i – IV7 (Cm7 – F7): the “Dorian side” of the scale, but with the b2 ready in the melody.
Songs and references
The sus(b9) color is a recurring trait in 1960s Blue Note records (Wayne Shorter, Herbie Hancock) and in the compositions of contemporary jazz players; many texts (Levine, The Jazz Theory Book) treat it in the chapter on “Phrygian” and sus chords. In progressive rock the Phrygian with major 6th often appears in the riffs of bands like Dream Theater, but not as the declared mode of an entire song: consider these attributions as colors, not as song labels.
Common mistakes
- Using it over an m7 of a tonal progression (the ii of a major key): the b2 clashes.
- Voicing with the major 3rd (E over C7sus(b9)): the chord is no longer sus, and the correct scale becomes another (Phrygian dominant or diminished).
- Forgetting that the 6th is major: with the b6 you are back to pure Phrygian.
Exercise
- Play Db/C (C in the bass, Db F Ab triad above) for 4 bars and improvise with C Db Eb F G A Bb, emphasizing A and Db.
- Insert a C7sus(b9) before an Fm(maj7): listen to how the suspended dominant resolves.
- Write a string ostinato in E Dorian b2 alternating Em and F, with a countermelody on the C#.
Connections
Melodic minor and its modes; Phrygian mode; Dorian mode; Sus, add, slash and hybrid chords; Chord-scale theory.