A♯maj9/C𝄪 guitar shapes

Popular fretboard positions with fingering suggestions

Showing 8 of 15 playable shapes

About the chord

A♯ major 9 / C𝄪 (1st inversion)

The A♯ major 9 major 9 chord adds a major ninth B♯ to the major 7th, creating an expansive, ethereal sound. Its rich harmonic structure enhances the major tonality with a modern, sophisticated vibe, ideal for jazz, ambient, and cinematic music. With C𝄪 in the bass, this voicing functions as the 1st inversion of A♯ major 9.

Root note: A♯
Bass note: C𝄪
Chord tones: 5
Playable shapes: 15

Chord tones

A♯C𝄪E♯G𝄪B♯

Notes & Intervals

Each note below shows how the chord is built from its root. This is the theory layer underneath the fretboard shapes.

A♯ Unison (Root) 1

The root anchors the chord and defines its tonal center.

C𝄪 Major Third 3

This note defines the chord's major quality and brings brightness to the sound.

E♯ Perfect Fifth 5

The fifth reinforces stability and gives the chord its strong harmonic frame.

G𝄪 Major Seventh 7

The major seventh adds a smooth, lush tension close to the root.

B♯ Major Ninth 9

The ninth opens the chord up and adds a modern, spacious color.

Related Articles

Articles that reference this chord and explain how to use it in your playing.