Finger Positions

Root Note A#

Name A# minor major seventh double flat fifth over B

Intervals 1P-3M-4P-7M

Relative Minor Gm

Notes B, A#, D, D#, A

Aliases

How to play the A#mmaj7bb5/B Chord

The A#mmaj7bb5/B is a fundamental major chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the A# minor major seventh double flat fifth over B is built using the 1P, 3M, 4P, 7M intervals. In the key of A# Major, this chord functions as the I chord.

Common Progressions

In music composition, the A#mmaj7bb5/B chord is often used to create tension or resolution.

I-V-vi-IV

A# → F → Gm → D#

vi-IV-I-V

Gm → D# → A# → F

The Diatonic Family

Understanding the "family" of chords that belong to A# helps with transposition and ear training.

Triads

A# Cm Dm D# F Gm Adim

7ths

A#maj7 Cm7 Dm7 D#maj7 F7 Gm7 Am7b5

Scale Compatibility

View All Scales

* 0 scales found containing the notes B, A#, D, D#, A.

Acoustic & Digital Analysis

Digital footprint of the A#mmaj7bb5/B chord for MIDI programming and synthesizer sound design.

MIDI Numbers 71, 70, 62, 63, 69

Frequencies (Hz)

493.8833012561241, 466.1637615180899, 293.6647679174076, 311.1269837220809, 440