C#maj9/A# Guitar Chord

The C# major ninth over A# is a major chord. Explore fingerings, progressions, and theory analysis below.

Finger Positions

Major
C#maj9/A# diagram
Root Note C#
Name C# major ninth over A#
Intervals 1P-3M-5P-7M-9M
Relative Minor A#m
Notes A#, C#, F, G#, C, D#
Aliases C#maj9, C#Δ9, C#^9

Common Progressions Popular patterns using C#

I-V-vi-IV

C# → G# → A#m → F#

vi-IV-I-V

A#m → F# → C# → G#

Diatonic Family (Triads)

C# D#m Fm F# G# A#m Cdim

Diatonic Family (7ths)

C#maj7 D#m7 Fm7 F#maj7 G#7 A#m7 Cm7b5

Scale Compatibility

View All Scales
Major Bebop Lydian Harmonic Major Bebop Major Ichikosucho Messiaen's Mode #3 Chromatic

* 8 scales found containing the notes A#, C#, F, G#, C, D#.

Audio & MIDI Analysis

MIDI Numbers 70, 61, 65, 68, 60, 63
Frequencies (Hz)

466.1637615180899, 277.1826309768721, 349.2282314330039, 415.3046975799451, 261.6255653005986, 311.1269837220809