Finger Positions

Root Note A#

Name A# minor augmented over A

Intervals 1P-3m-5A

Relative Minor Gm

Notes A, A#, C#, F#

Aliases A#m#5, A#-#5, A#m+

How to play the A#m#5/A Chord

The A#m#5/A is a fundamental augmented 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 augmented over A is built using the 1P, 3m, 5A intervals. In the key of A# Major, this chord functions as the I chord.

Common Progressions

In music composition, the A#m#5/A 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

Minor Harmonic Minor Diminished Phrygian Locrian Vietnamese 1 Pelog Hirajoshi Malkos Raga Augmented Altered Locrian #2 Ultralocrian Augmented Heptatonic Balinese

* 15 scales found containing the notes A, A#, C#, F#.

Acoustic & Digital Analysis

Digital footprint of the A#m#5/A chord for MIDI programming and synthesizer sound design.

MIDI Numbers 69, 70, 61, 66

Frequencies (Hz)

440, 466.1637615180899, 277.1826309768721, 369.9944227116344