Finger Positions

Caugmaj9 diagram
Root Note C
Name C augmented maj9
Intervals 1P-3M-5A-9M
Relative Minor Am
Notes C, E, G#, D
Aliases

How to play the Caugmaj9 Chord

The Caugmaj9 is a fundamental major 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 C augmented maj9 is built using the 1P, 3M, 5A, 9M intervals. In the key of C Major, this chord functions as the I chord.

Common Progressions

In music composition, the Caugmaj9 chord is often used to create tension or resolution.

I-V-vi-IV

C G Am F

vi-IV-I-V

Am F C G

The Diatonic Family

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

Triads

Scale Compatibility

View All Scales

* 0 scales found containing the notes C, E, G#, D.

Acoustic & Digital Analysis

Digital footprint of the Caugmaj9 chord for MIDI programming and synthesizer sound design.

MIDI Numbers 60, 64, 68, 62
Frequencies (Hz)

261.6255653005986, 329.6275569128699, 415.3046975799451, 293.6647679174076