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C#7b5 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–4–3–0–0–1

How to play the C#7b5 chord on guitar

Read the string pattern X–4–3–0–0–1 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) Do not play
5th string (A) Fret 4 · little finger
4th string (D) Fret 3 · ring finger
3rd string (G) Play open
2nd string (B) Play open
1st string (high E) Fret 1 · index finger

Notation for C#7b5 chord

Other names: C# 7th flat 5

Music theory name: seventh flat five chord

Common name: C# 7b5 chord

Intervals and tones in C#7b5 chord

Note Interval
C# Root
F Major 3rd
G Diminished 5th
H Minor 7th

All Variations

Open
X–4–3–0–0–1
Fret 4
X–4–5–4–6–X
Fret 8
9–X–9–10–8–X
Fret 12
X–X–12–13–13–14

More chords with C# as the root

The same chord type in other keys