C# Half-diminished 7th Chord (C#m7b5) on Piano & Guitar

    A piano keyboard reference for the C half-diminished 7th chord, abbreviated as Cm7b5 or Cø, with the notes on piano and chord inversions. It's abbreviated as Cm7b5 because the half-diminished 7th chord is a minor 7th chord with a flat 5.

    The C♯ half-diminished 7th chord has the notes C♯ E G B. The 3 inversions to the C♯ half-diminished 7th chord are E G B C♯, G B C♯ E and B C♯ E G.

    The intervals of the C♯m7b5 chord are the root (C♯) , minor third (E) , diminished fifth (G) and minor seventh (B) .

    🎸 You can also jump to guitar chord diagrams for the C♯m7b5 chord in common positions on the guitar fretboard. You'll find both open chords and/or barre chords.

    C♯ half-diminished 7th Chord on Piano

    C♯m7b5 chord

    notes: C♯ E G B

    • C
    • E
    • G
    • B

    C♯m7b5 1st inversion

    notes: E G B C♯

    • E
    • G
    • B
    • C

    C♯m7b5 2nd inversion

    notes: G B C♯ E

    • G
    • B
    • C
    • E

    C♯m7b5 3rd inversion

    notes: B C♯ E G

    • B
    • C
    • E
    • G

    🎸 C♯m7b5 Chord Guitar Diagrams

    Below you'll find guitar chord diagrams for common chord positions of the C♯ half-diminished 7th chord, along with finger positions or note names.

    show:
    orientation:
    1 Index finger
    2 Middle finger
    3 Ring finger
    4 Pinky

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    Piano Samples

    The piano samples used for this C♯ half-diminished 7th chord reference are from “ Salamander Grand Piano V3 ” by Alexander Holm, licensed under CC BY 3.0.

    Circle of fifths with major and minor keys adgcfebDAEBGCF mini circle of fifths