Chord sequence
F♯m7 Bm7 F♯m7 D7 C♯7alt F♯m7 G♯m7♭5 C♯7alt
In every key
Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.
Heard in F# minor
All the chords
The 12-bar blues in a minor key: minor 7ths on i and iv, and a bVI7 falling by half step to an altered V7 in bars 9 and 10.
Chords 7 to 8
G#m7b5 C#7alt
Over F#m7 · i7
Mode 2 of Major
Over Bm7 · iv7
Over D7 · ♭VI7
Mode 4 of Melodic Minor
Over C#7alt · V7alt
Mode 7 of Melodic Minor
Over G#m7b5 · iiø7
Mode 7 of Major