Chord sequence

A#m7, A7, G#m7, G7

A♯m7 A7 G♯m7 G7

Tempo 120 BPM

Rootless Shells Guide tones Rooted shells Rooted Drop 2

Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.

Customize each chord

A#m7
A7
G#m7
G7

Analysis

Heard in F# major

Each chord's roman numeral and role in F# major
Chord	Numeral	Role
A♯m7	iii7	Diatonic
A7	subV7/ii	Tritone substitute for V7/ii
G♯m7	ii7	Subdominant
G7	?	Outside the key (bII7)

Progressions in these changes

All the chords

Chromatic iii-bIII-ii-bII Progression in F#

The iii-VI-ii-V turnaround with both dominants replaced by tritone substitutes, so the roots descend by half steps from iii to I.

Scales to play