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C7b5 Guitar Chord

A tense jazz chord with a tritone replacing the perfect fifth. Often serves as a tritone substitution in jazz progressions — replacing the classic dominant seventh chord.

Guitar

Strings X–X–2–3–1–2

How to play the C7b5 chord on guitar

Read the string pattern X–X–2–3–1–2 from the low E string to the high E string. Numbers in the pattern are frets; numbers in the colored dots are left-hand fingers. X means a muted string and 0 means an open string.

6th string (low E) Muted
5th string (A) Muted
4th string (D) Fret 2 · middle finger
3rd string (G) Fret 3 · pinky
2nd string (B) Fret 1 · index finger
1st string (high E) Fret 2 · ring finger

Other names for the C7b5 chord

Other names: C 7th flat 5

Music theory name: seventh flat five chord

Common name: C 7b5 chord

Notes and intervals in the C7b5 chord

Note Interval
C Root
E Major 3rd
Gb Diminished 5th
Bb Minor 7th

All variations

Open
X–X–2–3–1–2
Fret 3
X–3–4–3–5–X
Fret 7
8–X–8–9–7–0
Fret 10
X–X–10–11–11–12

More chords with C as the root

The same chord type in other keys