Finger Positions

Aaug9/F# diagram
Root Note A
Name A augmented 9 over F#
Intervals 1P-3M-5A-9M
Relative Minor F#m
Notes F#, A, C#, F, B
Aliases

How to play the Aaug9/F# Chord

The Aaug9/F# 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 augmented 9 over F# is built using the 1P, 3M, 5A, 9M intervals. In the key of A Major, this chord functions as the I chord.

Common Progressions

In music composition, the Aaug9/F# 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 A helps with transposition and ear training.

Scale Compatibility

View All Scales

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

Acoustic & Digital Analysis

Digital footprint of the Aaug9/F# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 66, 69, 61, 65, 71
Frequencies (Hz)

369.9944227116344, 440, 277.1826309768721, 349.2282314330039, 493.8833012561241