F (musical note)

F is a musical note, the fourth above C or fifth below C. It is the fourth note and the sixth semitone of the solfège. It is also known as fa in fixed-do solfège. It is enharmonic equivalent with E and G, amongst others.
When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of Middle F is approximately 349.228 Hz. See pitch for a discussion of historical variations in frequency.

Designation by octave

F major: F G A B C D E F
F natural minor: F G A B C D E F
F harmonic minor: F G A B C D E F
F melodic minor ascending: F G A B C D E F
F melodic minor descending: F E D C B A G F
[Diatonic scale]s
F Ionian: F G A B C D E F
F Dorian: F G A B C D E F
F Phrygian: F G A B C D E F
F Lydian: F G A B C D E F
F Mixolydian: F G A B C D E F
F Aeolian: F G A B C D E F
F Locrian: F G A B C D E F
Jazz melodic minor">Jazz scale#Modes of the melodic minor scale">Jazz melodic minor
F ascending melodic minor: F G A B C D E F
F Dorian 2: F G A B C D E F
F Lydian augmented: F G A B C D E F
F Lydian dominant: F G A B C D E F
F Mixolydian 6: F G A B C D E F
F Locrian 2: F G A B C D E F
F altered: F G A B C D E F
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. Though E and F sound the same in any 12-tone temperament, other tunings may define them as distinct pitches.