Construction
F Add 4 = Root + Major 3rd + Perfect 4th + Perfect 5th = F, A, B♭, C
| Note | Interval | Degree |
|---|---|---|
| F | Root | 1 |
| A | Major 3rd | 3 |
| B♭ | Perfect 4th | 4 |
| C | Perfect 5th | 5 |
Fingering
| Note | Key color | Right hand | Left hand |
|---|---|---|---|
| F | white | thumb (1) | little finger (5) |
| A | white | index finger (2) | middle finger (3) |
| B♭ | black | middle finger (3) | index finger (2) |
| C | white | little finger (5) | thumb (1) |
Right hand: thumb (1) on F, index finger (2) on A, middle finger (3) on B♭, little finger (5) on C.
Left hand: little finger (5) on F, middle finger (3) on A, index finger (2) on B♭, thumb (1) on C.
Key Signature
A chord has no key signature of its own, but the F Add 4 is the tonic (I) chord of F Major, whose key signature has 1 flat (B♭).
B♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of F Major
These are the triads built on each degree of F Major:
F Add 4 : Frequently Asked Questions
What is the F Add 4 chord on piano?
The F Add 4 chord contains the notes F – A – B♭ – C. On piano, play these notes together to sound the chord.