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C♯m7♭5 Guitar Chord

C♯ half-diminished (C♯m7♭5) is made of the notes C♯ E G B. Here are 3 ways to play it on guitar, starting with the easiest.

How to play C♯m7♭5 on guitar

  1. Shape 1

    Open position

    3 1 C♯ E G B E

    x42000

  2. Shape 2

    Barre at fret 9

    9fr 1 2 4 C♯ G B E B C♯

    9-10-9-9-12-9

  3. Shape 3

    Barre at fret 4

    4fr 1 2 3 C♯ G B E

    x4545x

Notes in C♯m7♭5

Formula 1 ♭3 ♭5 ♭7
DegreeNote
1C♯
♭3E
♭5G
♭7B

Shape 1 step by step

  1. Put your ring finger on string 5 at fret 4.
  2. Put your index finger on string 4 at fret 2.
  3. Let strings 3, 2, 1 ring open.
  4. Don’t play string 6.
  5. Strum from string 5 to string 1.

Shape 2 step by step

  1. Lay your index finger flat across strings 6 to 1 at fret 9.
  2. Put your middle finger on string 5 at fret 10.
  3. Put your little finger on string 2 at fret 12.
  4. Strum from string 6 to string 1.

Tune your guitar first

A chord only sounds right when your instrument is in tune. Check your strings with the free online tuner before you practise. Open the guitar tuner

Frequently asked questions

What notes are in the C♯m7♭5 chord?

C♯ half-diminished has the notes C♯ E G B. Its formula is 1 ♭3 ♭5 ♭7. The numbers are steps of the major scale, counted from the root.

What is the easiest way to play C♯m7♭5 on guitar?

Start with shape 1 (open position), written as x42000 from string 6 to string 1. Here x means you don’t play that string and 0 means it rings open.

What is the difference between C♯m7♭5 and C♯dim7?

C♯m7♭5 has the notes C♯ E G B, and C♯dim7 has C♯ E G B♭. The only difference is that C♯m7♭5 has B where C♯dim7 has B♭.

Is C♯m7♭5 the same chord as D♭m7♭5?

Yes. C♯m7♭5 and D♭m7♭5 sound the same and use the same shapes. The name a chart uses depends on the key of the song.

Half-diminished chords in every key

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