What notes are in the C°7 chord?

C°7 (C diminished 7th) contains C, E♭, G♭, B♭♭ — formula 1 ♭3 ♭5 ♭♭7.

How do you play C°7 on guitar?

A common shape is x31212 (low E to high E, x = muted string, around fret 1). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.

What scale goes with C°7?

Good choices to solo over C°7: C Diminished (whole-half), C Superlocrian 𝄫7, C Locrian ♮6.

C°7 Chord on Guitar

C°7 is the C diminished 7th chord — 4 notes (C, E♭, G♭, B♭♭) built from the formula 1 ♭3 ♭5 ♭♭7. Below are playable shapes across the fretboard, the keys it belongs to and the scales to use when soloing over it.

Notes: C · E♭ · G♭ · B♭♭Formula: 1 · ♭3 · ♭5 · ♭♭7Hear it and see it on the fretboard ▸

C°7: Chord shapes (open & barre)

fret 1
fret 2
fret 7
fret 8
fret 10
fret 13

C°7: Drop 2 voicings

bass: ♭5
bass: ♭5
bass: ♭5
bass: ♭♭7
bass: ♭♭7
bass: ♭♭7
bass: R
bass: R
bass: R
bass: ♭3
bass: ♭3
bass: ♭3

C°7: Drop 3 voicings

bass: ♭3
bass: ♭3
bass: ♭5
bass: ♭5
bass: ♭♭7
bass: ♭♭7
bass: R
bass: R

C°7: Shell voicings (jazz)

R-3-7
R-3-7
R-7-3
R-7-3

Scales to play over C°7

Ordered from the most common choice. All of them contain C, E♭, G♭, B♭♭.

Other C chords

Triads

Sevenths

Sixths

Added

Extended

Diminished 7th chords in other keys

FAQ

What notes are in the C°7 chord?: C°7 (C diminished 7th) contains C, E♭, G♭, B♭♭ — formula 1 ♭3 ♭5 ♭♭7.
How do you play C°7 on guitar?: A common shape is x31212 (low E to high E, x = muted string, around fret 1). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.
What scale goes with C°7?: Good choices to solo over C°7: C Diminished (whole-half), C Superlocrian 𝄫7, C Locrian ♮6.