For the programming language, see F Sharp (programming language).
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). However, in some temperaments, 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).
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 F♯4) is approximately 369.994 Hz. See pitch (music) for a discussion of historical variations in frequency.
Contents
1Designation by octave
2Scales
2.1Common scales beginning on F♯
2.2Diatonic scales
2.3Jazz melodic minor
3See also
Designation by octave
Scientific designation
Helmholtz designation
Octave name
Frequency (Hz)
F♯−1
F♯͵͵͵ or ͵͵͵F♯ or FFFF♯
Subsubcontra
11.562
F♯0
F♯͵͵ or ͵͵F♯ or FFF♯
Subcontra
23.125
F♯1
F♯͵ or ͵F♯ or FF♯
Contra
46.249
F♯2
F♯
Great
92.499
F♯3
f♯
Small
184.997
F♯4
f♯′
One-lined
369.994
F♯5
f♯′′
Two-lined
739.989
F♯6
f♯′′′
Three-lined
1479.978
F♯7
f♯′′′′
Four-lined
2959.955
F♯8
f♯′′′′′
Five-lined
5919.911
F♯9
f♯′′′′′′
Six-lined
11839.822
F♯10
f♯′′′′′′′
Seven-lined
23679.643
Scales
Common scales beginning on F♯
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 scales
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
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♯
F# rules
See also
Piano key frequencies
F-sharp major
F-sharp minor
v
t
e
Notes of the chromatic scale
B♯ / C
C♯ / D♭
D
D♯ / E♭
E / F♭
E♯ / F
F♯ / G♭
G
G♯ / A♭
A
A♯ / B♭
B / C♭
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D♯ E♯ F♯
