C♯ Half-Diminished Chord (C♯m7♭5)
Notes: C♯, E, G, B. Tap any diagram to hear it.
C♯m7♭5
C♯m7♭5 on guitar
x-4-2-0-0-09-7-9-0-0-0x-x-11-12-12-12Strings from low (left) to high (right). Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. × = don’t play, ○ = open string.
C♯m7♭5 on ukulele
0-1-0-20-4-7-49-11-9-10C♯m7♭5 on piano
Other C♯ chords
Half-Diminished chords in other keys
About the C♯ Half-Diminished chord
Half-diminished chords (minor seven flat five) are the ii chord of minor keys and a staple of jazz progressions. C♯m7♭5 is built from the root (C♯), minor third (E), diminished fifth (G), minor seventh (B).
Frequently asked questions
What notes are in the C♯ Half-Diminished chord?
The C♯m7♭5 chord is made of C♯, E, G, B: the root, minor third, diminished fifth, minor seventh.
How do you play C♯m7♭5 on guitar?
The most common fingering is x-4-2-0-0-0, from the low E string to the high E string (x = don’t play that string, 0 = open string).
How do you play C♯m7♭5 on piano?
Press C♯, E, G, B together. In root position the lowest note is C♯.