Gm7, Gb7, Fm7, Bb7, Ebm7, Ab7, Bbmaj7

Analysis

Heard in Bb major

Progressions in these changes

• Chords 3 to 6

  Major iii-VI-ii-V Progression in Db

  Fm7 Bb7 Ebm7 Ab7

• Chords 5 to 7

  Backdoor ii-V-I Progression in Bb

  Ebm7 Ab7 Bbmaj7

Scales to play

• Over Gm7 · vi7

  G Aeolian

  Mode 6 of Major

• Over Gb7 · subV7/v

  Gb Lydian Dominant

  Mode 4 of Melodic Minor

• Over Fm7 · ii7/iv

  F Dorian

  Mode 2 of Major

• Over Bb7 · V7/iv

  Bb Mixolydian b6

  Mode 5 of Melodic Minor

• Over Ebm7 · iv7

  Eb Dorian

  Mode 2 of Major

• Over Ab7 · ♭VII7

  Ab Lydian Dominant

  Mode 4 of Melodic Minor

• Over Bbmaj7 · Imaj7

  Bb Ionian

  The major scale and its modes are the most commonly used scales in western music.