F (musical note)

F (musical note)

F is a musical note, the fourth above C. It is also known as fa in fixed-do solfège.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of Middle F (F4) is approximately 349.228 Hz. See pitch (music) for a discussion of historical variations in frequency.

E sharp

E is a common enharmonic equivalent of F, but is not regarded as the same note. E is commonly found before F in the same measure in pieces where F is in the key signature, in order to represent a diatonic, rather than a chromatic semitone; writing an F with a following F is regarded as a chromatic alteration of one scale degree.

Designation by octave

Scientific designation Helmholtz designation Octave name Frequency (Hz)
F-1 F͵͵͵ Subsubcontra 10.913
F0 F͵͵ Subcontra 21.827
F1 Contra 43.654
F2 F Great 87.307
F3 f Small 174.614
F4 f′ One-lined 349.228
F5 f′′ Two-lined 698.456
F6 f′′′ Three-lined 1396.913
F7 f′′′′ Four-lined 2793.826
F8 f′′′′′ Five-lined 5587.652
F9 f′′′′′′ Six-lined 11175.303

See also