C#7 Piano Chord
A tense chord that "wants" to resolve up a fourth. Essential for blues, jazz, rock'n'roll and funk. The added minor seventh creates characteristic tension.
Recommended voicing
C#4 · F4 · Ab4 · B4
With bass · rootless
Left hand
F3 · B3
fingers 5–1
Right hand
Free
melody / improvisation
Jazz accompaniment with a bass player: the bass supplies the root, leaving the right hand free for melody or improvisation.
Notation for C#7 chord
Other names: C# dominant 7th, C# dom7, C# 7
Music theory name: dominant seventh chord
Common name: C# seven chord
Intervals and tones in C#7 chord
| Note | Interval |
|---|---|
| C# | Root |
| F | Major 3rd |
| Ab | Perfect 5th |
| H | Minor 7th |
Inversions
1st inversion
F4 · Ab4 · B4 · C#5
2nd inversion
Ab4 · B4 · C#5 · F5