G (musical note)

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G note

Sol, so, or G is the fifth note of the fixed-do solfège starting on C. As such it is the dominant, a perfect fifth above C or perfect fourth below C.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of middle G (G4) note is approximately 391.995 Hz. See pitch for a discussion of historical variations in frequency.

It has enharmonic equivalents of Fdouble sharp (a diatonic semitone below G) and Adouble flat (a diatonic semitone above G).

Designation by octave[]

Scientific designation Helmholtz designation Octave name Frequency (Hz)
G−1 G͵͵͵ or ͵͵͵G or GGGG Subsubcontra 12.25
G0 G͵͵ or ͵͵G or GGG Subcontra 24.5
G1 G͵ or ͵G or GG Contra 48.999
G2 G Great 97.999
G3 g Small 195.998
G4 g′ One-lined 391.995
G5 g′′ Two-lined 783.991
G6 g′′′ Three-lined 1567.982
G7 g′′′′ Four-lined 3135.963
G8 g′′′′′ Five-lined 6271.927
G9 g′′′′′′ Six-lined 12543.854
G10 g′′′′′′′ Seven-lined 25087.708

Scales[]

Common scales beginning on G[]

  • G Major: G A B C D E F G
  • G Natural Minor: G A B C D E F G
  • G Harmonic Minor: G A B C D E F G
  • G Melodic Minor Ascending: G A B C D E F G
  • G Melodic Minor Descending: G F E D C B A G

Diatonic scales[]

Jazz melodic minor[]

See also[]

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