Chord sequence

Am7b5, Ab7#11

Am7♭5 A♭7♯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

Am7b5
Ab7#11

Analysis

Heard in Bb major

Each chord's roman numeral and role in Bb major
Chord	Numeral	Role
Am7♭5	viiø7	Diatonic
A♭7♯11	♭VII7♯11	Borrowed from Bb minor

Scales to play