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G♭ (musical note)

From Wikipedia, the free encyclopedia

G Flat
G Flat

G (G-flat) (Ges or sol bémol) is the seventh semitone of the solfège.

It lies a diatonic semitone above F and a chromatic semitone below G, thus being enharmonic to F (F-sharp) or fa dièse. However, in some temperaments, it is not the same as F. 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 G semitone is approximately 369.994 Hz. See pitch (music) for a discussion of historical variations in frequency.

Designation by octave

Scientific designation Helmholtz designation Octave name Frequency (Hz)
G−1 G͵͵͵ or ͵͵͵G or GGGG Octocontra 11.562
G0 G͵͵ or ͵͵G or GGG Subcontra 23.125
G1 G͵ or ͵G or GG Contra 46.249
G2 G Great 92.499
G3 g Small 184.997
G4 g One-lined 369.994
G5 g′′ Two-lined 739.989
G6 g′′′ Three-lined 1479.978
G7 g′′′′ Four-lined 2959.955
G8 g′′′′′ Five-lined 5919.911
G9 g′′′′′′ Six-lined 11839.822
G10 g′′′′′′′ Seven-lined 23679.643


Common scales beginning on G

Diatonic scales

  • G Ionian: G A B C D E F G
  • G Dorian: G A B
    double flat
    C D E F G
  • G Phrygian: G A
    double flat
    double flat
    C D E
    double flat
    F G
  • G Lydian: G A B C D E F G
  • G Mixolydian: G A B C D E F G
  • G Aeolian: G A B
    double flat
    C D E
    double flat
    F G
  • G Locrian: G A
    double flat
    double flat
    C D
    double flat
    double flat
    F G

Jazz melodic minor

See also

This page was last edited on 10 February 2021, at 20:42
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