Construction
C Major 7♯11 = Root + Major 3rd + Diminished 5th + Perfect 5th + Major 7th = C, E, F♯, G, B
| Note | Interval | Degree |
|---|---|---|
| C | Root | 1 |
| E | Major 3rd | 3 |
| F♯ | Diminished 5th | ♭5 |
| G | Perfect 5th | 5 |
| B | Major 7th | 7 |
Fingering
| Note | Key color | Right hand | Left hand |
|---|---|---|---|
| C | white | thumb (1) | little finger (5) |
| E | white | index finger (2) | ring finger (4) |
| F♯ | black | middle finger (3) | middle finger (3) |
| G | white | ring finger (4) | index finger (2) |
| B | white | little finger (5) | thumb (1) |
Right hand: thumb (1) on C, index finger (2) on E, middle finger (3) on F♯, ring finger (4) on G, little finger (5) on B.
Left hand: little finger (5) on C, ring finger (4) on E, middle finger (3) on F♯, index finger (2) on G, thumb (1) on B.
Key Signature
A chord has no key signature of its own, but the C Major 7♯11 is the tonic (I) chord of C Major, whose key signature has no sharps or flats.
Chords in the Key of C Major
These are the triads built on each degree of C Major:
C Major 7♯11 : Frequently Asked Questions
What is the C Major 7♯11 chord on piano?
The C Major 7♯11 chord contains the notes C – E – F♯ – G – B. On piano, play these notes together to sound the chord.