Finger Positions

Root Note A

Name A over B

Intervals 1P-3M-5A-7m

Relative Minor F#m

Notes B, A, C#, F, G

Aliases A7#5, A+7, A7+, A7aug, Aaug7

How to play the Aaug7/B Chord

The Aaug7/B is a fundamental dominant 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 over B is built using the 1P, 3M, 5A, 7m intervals. In the key of A Major, this chord functions as the I chord.

Common Progressions

In music composition, the Aaug7/B chord is often used to create tension or resolution.

I-V-vi-IV

A → E → F#m → D

vi-IV-I-V

F#m → D → A → E

The Diatonic Family

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

Triads

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

7ths

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

Scale Compatibility

View All Scales

Whole Tone Pentatonic Mystery #1 Whole Tone Locrian Major Altered Mixolydian B6 Leading Whole Tone Lydian Minor Phrygian Dominant Enigmatic Spanish Heptatonic Messiaen's Mode #6 Messiaen's Mode #3 Chromatic

* 14 scales found containing the notes B, A, C#, F, G.

Acoustic & Digital Analysis

Digital footprint of the Aaug7/B chord for MIDI programming and synthesizer sound design.

MIDI Numbers 71, 69, 61, 65, 67

Frequencies (Hz)

493.8833012561241, 440, 277.1826309768721, 349.2282314330039, 391.99543598174927