How to Play C7 on Piano
The C Dominant 7th chord sounds restless and bluesy. It stacks 4 notes: C – E – G – Bb.
A major triad plus a flattened seventh. The tritone between its third and seventh is what makes it lean so hard toward the chord a fourth above.
Notes in C7
| Note | Interval | Finger |
|---|---|---|
| CC4 | Root | 1 |
| EE4 | Major 3rd | 2 |
| GG4 | Perfect 5th | 3 |
| BbBb4 | Minor 7th | 5 |
How to Play
Right Hand
Place your thumb (finger 1) on C. Use finger 2 on E, finger 3 on G, and finger 5 on Bb.
Where it sits
One note of this chord (Bb) is on black keys, so play it a little further back on the keys than an all-white shape.
Press all 4 keys at the same time. Keep your wrist relaxed and your fingers curved. The blue dots on the piano below show exactly which keys to press — they turn green when you play the right note.