C#9b5/A# Guitar Chord

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

Finger Positions

Dominant
C#9b5/A# diagram
Root Note C#
Name C# over A#
Intervals 1P-3M-5d-7m-9M
Relative Minor A#m
Notes A#, C#, F, G, B, D#
Aliases C#9b5

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
Prometheus Whole Tone Locrian Major Lydian Dominant Leading Whole Tone Lydian Minor Messiaen's Mode #6 Composite Blues Messiaen's Mode #3 Chromatic

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

Audio & MIDI Analysis

MIDI Numbers 70, 61, 65, 67, 71, 63
Frequencies (Hz)

466.1637615180899, 277.1826309768721, 349.2282314330039, 391.99543598174927, 493.8833012561241, 311.1269837220809