Chord sequence

Bbm7b5, A7#11

B♭m7♭5 A7♯11

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

Bbm7b5
A7#11

Analysis

Heard in D major

Each chord's roman numeral and role in D major
Chord	Numeral	Role
B♭m7♭5	?	Outside the key (bviø7)
A7♯11	V7♯11	Dominant

Scales to play