F♯ (musical note)

F♯ (F-sharp; also known as fa dièse or fi) is the seventh semitone of the solfège.

It lies a chromatic semitone above F and a diatonic semitone below G, thus being enharmonic to sol bémol or G♭ (G-flat) in 12 equal temperament.

Another enharmonic note is E (E-double sharp).

[1] See pitch (music) for a discussion of historical variations in frequency.

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