Finger Positions

Root Note E

Name E dominant flat ninth over A

Intervals 1P-3M-5P-7m-9m

Relative Minor C#m

Notes A, E, G#, B, D, F

Aliases E7b9

How to play the E7b9/A Chord

The E7b9/A 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 E dominant flat ninth over A is built using the 1P, 3M, 5P, 7m, 9m intervals. In the key of E Major, this chord functions as the I chord.

Common Progressions

In music composition, the E7b9/A chord is often used to create tension or resolution.

I-V-vi-IV

E → B → C#m → A

vi-IV-I-V

C#m → A → E → B

The Diatonic Family

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

Triads

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

7ths

Emaj7 F#m7 G#m7 Amaj7 B7 C#m7 D#m7b5

Scale Compatibility

View All Scales

Phrygian Dominant Flamenco Spanish Heptatonic Half-Whole Diminished Chromatic

* 5 scales found containing the notes A, E, G#, B, D, F.

Acoustic & Digital Analysis

Digital footprint of the E7b9/A chord for MIDI programming and synthesizer sound design.

MIDI Numbers 69, 64, 68, 71, 62, 65

Frequencies (Hz)

440, 329.6275569128699, 415.3046975799451, 493.8833012561241, 293.6647679174076, 349.2282314330039