A9b5/A# Guitar Chord

The A over A# is a dominant chord. Explore fingerings, progressions, and theory analysis below.

Finger Positions

Dominant
A9b5/A# diagram
Root Note A
Name A over A#
Intervals 1P-3M-5d-7m-9M
Relative Minor F#m
Notes A#, A, C#, Eb, G, B
Aliases A9b5

Common Progressions Popular patterns using A

I-V-vi-IV

A → E → F#m → D

vi-IV-I-V

F#m → D → A → E

Diatonic Family (Triads)

A Bm C#m D E F#m G#dim

Diatonic Family (7ths)

Amaj7 Bm7 C#m7 Dmaj7 E7 F#m7 G#m7b5

Scale Compatibility

View All Scales
Prometheus Whole Tone Locrian Major Lydian Dominant Leading Whole Tone Lydian Minor Messiaen's Mode #6 Composite Blues Messiaen's Mode #3 Chromatic

* 10 scales found containing the notes A#, A, C#, Eb, G, B.

Audio & MIDI Analysis

MIDI Numbers 70, 69, 61, 63, 67, 71
Frequencies (Hz)

466.1637615180899, 440, 277.1826309768721, 311.1269837220809, 391.99543598174927, 493.8833012561241