F♯ (musical note)

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{ \new Staff \with{ \magnifyStaff #3/2 } << \time 2/1 \override Score.TimeSignature #'stencil = ##f { \clef bass fis1_F-sharp \clef treble fis'_F-sharp } >> }


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. However, in other temperaments, such as quarter-comma meantone, it is not the same as G. G is a major third below B, whereas F is a major third above D (a minor third below A). Another enharmonic note is Edouble sharp (E-double sharp).

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the F above middle C (or F4) is approximately 369.994Hz.[1] See pitch (music) for a discussion of historical variations in frequency.

Designation by octave[edit]

Scientific designation Helmholtz designation Octave name Frequency (Hz)
F−1 F͵͵͵ or ͵͵͵F or FFFF Subsubcontra 11.562
F0 F͵͵ or ͵͵F or FFF Subcontra 23.125
F1 F͵ or ͵F or FF Contra 46.249
F2 F Great 92.499
F3 f Small 184.997
F4 f One-lined 369.994
F5 f Two-lined 739.989
F6 f Three-lined 1479.978
F7 f Four-lined 2959.955
F8 f Five-lined 5919.911
F9 f Six-lined 11839.822
F10 f Seven-lined 23679.643

Scales[edit]

Common scales beginning on F[edit]

Diatonic scales[edit]

  • 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[edit]

References[edit]

  1. ^ Suits, B. H. (1998). "Physics of Music Notes - Scales: Just vs Equal Temperament". MTU.edu. Michigan Technological University. Retrieved 5 February 2024.

See also[edit]