The F♭ Note
F♭ is a white key on the piano. It sounds at 329.63 Hz in octave 4.
F♭ on the piano
Key facts
- On the keyboard
- a white key on the piano.
- Frequency (octave 4)
- 329.63 Hz
- MIDI number (octave 4)
- 64
- Also written as
- E
- In key signatures
- The 7 flat in the order of flats.
F♭ and its enharmonic spellings
F♭ can also be written as E. These are enharmonic equivalents: the same pitch, the same key on the piano, a different name on the page. Which spelling is correct depends on the key and on how the note functions, not on the sound.
F♭ frequency in every octave
Frequencies for F♭ in scientific pitch notation, with A4 tuned to 440 Hz.
| Note | MIDI | Frequency |
|---|---|---|
| F♭1 | 28 | 41.2 Hz |
| F♭2 | 40 | 82.41 Hz |
| F♭3 | 52 | 164.81 Hz |
| F♭4 | 64 | 329.63 Hz |
| F♭5 | 76 | 659.26 Hz |
| F♭6 | 88 | 1318.51 Hz |
| F♭7 | 100 | 2637.02 Hz |
Chords on F♭
The most common chords built with F♭ as the root.
All notes
Ofte stilte spørsmål
Where is F♭ on the piano?
F♭ is a white key on the piano.
What frequency is F♭4?
F♭4 sounds at 329.63 Hz with A4 tuned to 440 Hz.
What is another name for F♭?
F♭ can also be written as E. They are the same pitch spelled differently.
