← Chords
Go to the app!
C♯ half-diminished chord
The C♯m7♭5 chord (half-diminished) is made of the notes C♯, E, G, B. Its formula compared with the major scale is 1 ♭3 ♭5 ♭7.
C♯m7♭5
Sevenths · 4 notes
Note names
How it is built
| Degree | Note | Interval from the root |
|---|---|---|
| 1 | C♯ | Unison |
| ♭3 | E | Minor third |
| ♭5 | G | Diminished fifth |
| ♭7 | B | Minor seventh |
Inversions
- C♯m7♭5C♯ E G BRoot position
- C♯m7♭5/EE G B C♯First inversion
- C♯m7♭5/GG B C♯ ESecond inversion
- C♯m7♭5/BB C♯ E GThird inversion
Which keys it belongs to
C♯m7♭5 is a diatonic chord, that is, it comes from a degree of the scale, in these keys:
Frequently asked questions
- Which notes make up the C♯m7♭5 chord?
- The notes are C♯, E, G, B.
- What is the formula of the C♯m7♭5 chord?
- The formula is 1 ♭3 ♭5 ♭7: minor third, diminished fifth, minor seventh.
From theory to practice
With GEN you generate ever-new exercises on the scales you are studying.