G♭ (musical note)


G 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 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.
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 for a discussion of historical variations in frequency.

Designation by octave

Scales

Common scales beginning on G