Finger Positions

Abaug9 diagram
Root Note Ab
Name Ab augmented 9
Intervals 1P-3M-5A-9M
Relative Minor Fm
Notes Ab, C, E, Bb
Aliases

How to play the Abaug9 Chord

The Abaug9 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 Ab augmented 9 is built using the 1P, 3M, 5A, 9M intervals. In the key of Ab Major, this chord functions as the I chord.

Common Progressions

In music composition, the Abaug9 chord is often used to create tension or resolution.

I-V-vi-IV

vi-IV-I-V

The Diatonic Family

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

Scale Compatibility

View All Scales

* 0 scales found containing the notes Ab, C, E, Bb.

Acoustic & Digital Analysis

Digital footprint of the Abaug9 chord for MIDI programming and synthesizer sound design.

MIDI Numbers 68, 60, 64, 70
Frequencies (Hz)

415.3046975799451, 261.6255653005986, 329.6275569128699, 466.1637615180899