Piano chord
C♯ 7 chord
C♯7 is a dominant seventh chord: the root C♯, a major 3rd up to E♯, a perfect 5th up to G♯ and a minor 7th up to B.
- Symbol
- C♯7
- Notes
- C♯ – E♯ – G♯ – B
Play it yourself
Tap C♯, E♯, G♯ and B on the keys below, in any order.
- C♯
- E♯
- G♯
- B
Dominant seventh chords add a minor seventh to a major triad. That extra note creates the pull you hear at the end of a phrase, and it is the backbone of blues and jazz.
Inversions of C♯7
An inversion keeps the same notes but puts a different one at the bottom. Pianists use them to move between chords with less jumping.
- Root position
C♯ – E♯ – G♯ – B
- 1st inversion · C♯7/E♯
E♯ – G♯ – B – C♯
- 2nd inversion · C♯7/G♯
G♯ – B – C♯ – E♯
- 3rd inversion · C♯7/B
B – C♯ – E♯ – G♯
Keys with C♯7
C♯7 occurs naturally in these keys. The Roman numeral shows which step of the scale it is built on.