Dorian scale consists of the ascending pattern:
WHWWWHW
Dorian scale is the 2nd mode in the major scale family.
It can be thought of as a major scale with b3 and b7.
–the 3rd and 7th notes lowered a half step.
This scale is typically used when improvising over m3, m6, m7 m9 m11 m13
minor triad: 1 b3 5
minor 6: 1 b3 5 6
minor 7: 1 b3 5 b7
minor 9: 1 b3 5 b7 9
minor 11: 1 b3 5 b7 9 11
minor 13: 1 b3 5 b7 9 11 13
Note that a minor 13 — contains allthe notes in the dorian scaled stacked in 3rds.
In major key, minor chords fnction as:
–ii supertonic
–iii mediant
–vi submediant
In a minor key, minor chord funciton as i (tonic); iv (subdominant chord)
The dorian scale is the preferred choice when improvising over minor chords functioning as ii chords in a major key, iv chords in a minor key or where the chord lasts four measures or more (modal compositions).
Every note in the dorian scale maybe used over the minor chord, but the 2nd, 4th, and 6th degrees have the richest color