Construction
F♯ Diminished Major 7th = Root + Minor 3rd + Diminished 5th + Major 7th = F♯, A, C, E♯
| Note | Interval | Degree |
|---|---|---|
| F♯ | Root | 1 |
| A | Minor 3rd | ♭3 |
| C | Diminished 5th | ♭5 |
| E♯ | Major 7th | 7 |
Fingering
| Note | Key color | Right hand | Left hand |
|---|---|---|---|
| F♯ | black | index finger (2) | little finger (5) |
| A | white | middle finger (3) | ring finger (4) |
| C | white | ring finger (4) | middle finger (3) |
| E♯ | white | little finger (5) | index finger (2) |
Right hand: index finger (2) on F♯, middle finger (3) on A, ring finger (4) on C, little finger (5) on E♯.
Left hand: little finger (5) on F♯, ring finger (4) on A, middle finger (3) on C, index finger (2) on E♯.
Key Signature
A Diminished Major 7th chord is built from symmetrical or ambiguous intervals, so it doesn't belong to a single key and has no key signature of its own.
Chords in the Key of F♯ Major
These are the triads built on each degree of F♯ Major:
F♯ Diminished Major 7th : Frequently Asked Questions
What is the F♯ Diminished Major 7th chord on piano?
The F♯ Diminished Major 7th chord contains the notes F♯ – A – C – E♯. On piano, play these notes together to sound the chord.
What is the F# piano chord?
The F# piano chord (written F♯ Diminished Major 7th) uses the same keys: F♯ – A – C – E♯. The # and ♯ symbols name the same black key.