C#6b5/A Guitar Chord

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

Finger Positions

Major
C#6b5/A diagram
Root Note C#
Name C# over A
Intervals 1P-3M-5P-6M-11A
Relative Minor A#m
Notes A, C#, F, G#, A#, G
Aliases C#M6#11, C#M6b5, C#6#11, C#6b5

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
Lydian Lydian Dominant Hungarian Major Lydian #9 Ichikosucho Half-Whole Diminished Composite Blues Chromatic

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

Audio & MIDI Analysis

MIDI Numbers 69, 61, 65, 68, 70, 67
Frequencies (Hz)

440, 277.1826309768721, 349.2282314330039, 415.3046975799451, 466.1637615180899, 391.99543598174927