What notes are in the Cm7b5 chord?

Cm7b5 contains C, Eb, Gb, Bb. Its formula is 1-b3-b5-b7.

What is the easiest way to play Cm7b5?

Try x x 10 11 11 11 (Easy 4-string version). It uses 4 fretted notes and no barre.

What key is Cm7b5 in?

Cm7b5 belongs to Db major (as the viiø7 chord).

Why does my Cm7b5 chord buzz?

Press each string just behind the fret wire, keep your fingertips upright so they don't touch the next string, and keep your thumb behind the neck. On a barre, roll the index finger slightly onto its bony edge.

Can I use a capo for Cm7b5?

Yes. A capo lets you play Cm7b5 with an easier open shape: use the chord transposer to find which shape to play for a given capo fret.

Why is Cm7b5 called half-diminished?

A fully diminished 7th chord has a diminished 7th; Cm7b5 has a minor 7th instead, so it is "half" diminished.

Cm7b5 Chord on Guitar: 3 Easy Ways to Play It (Charts)

Cm7b5 Chord on Guitar: 3 Easy Ways to Play C Minor Seventh Flat Five (Charts)

Cm7b5 chord charts with finger numbers, an easier version, the notes and intervals, and the keys and progressions that use it. Also searched as cm7b5 chord, cm7b5 guitar chord and how to play Cm7b5.

By David Sandy, guitar player and founder of Sandy Music Lab. Every chord shape on this page is checked note by note against the chord's formula.

Barre (3rd fret, A-string root)
x 3 4 3 4 6

Easy 4-string version
x x 10 11 11 11

Movable shape (8th fret)
8 9 8 8 11 8

Numbers are fingers (1 index, 2 middle, 3 ring, 4 pinky, T thumb). × = don't play that string, ○ = play it open. A long bar is a barre: one finger flat across those strings. Strings run low E (left) to high e (right).

Chord chart by Sandy Music Lab

Quick answer: To play Cm7b5 (C minor seventh flat five) on guitar, play x 3 4 3 4 6 from the low E string to the high e string (the barre (3rd fret, A-string root) shape). The chord contains C, Eb, Gb, Bb. If that is hard, use the easier shape x x 10 11 11 11, which needs 4 fretted notes.

Cm7b5 chord facts

Chord	Cm7b5 (C minor seventh flat five)
Other names	Cø7, Cmin7b5, C-7b5
Notes	C, Eb, Gb, Bb
Intervals	C (root), Eb (minor 3rd), Gb (diminished 5th), Bb (minor 7th)
Formula	1-b3-b5-b7
Difficulty	Intermediate (barre or stretch)
Shapes on this page	3

How do you play Cm7b5 on guitar?

The main shape is x 3 4 3 4 6 (Barre (3rd fret, A-string root)). Finger by finger:

Lay your index finger flat across the A to high e strings at fret 3. This is the barre.
Put your middle finger (2) on the D string at fret 4 (Gb, the diminished 5th).