Sol or G is the fifth note of the solfège.This article is assuming C as Do, do not make the mistake of thinking G is always Sol.

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

It has 2 enharmonics: Fx and A♭♭.

[edit] Designation by octave

Scientific Designation	Helmholtz Designation	Octave Name	Frequency (Hz)
G-1	Gˌˌˌ	Subsubcontra	12.25
G0	Gˌˌ	Subcontra	24.5
G1	Gˌ	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	3135.964
G8	g′″″	Five-lined	6271.927
G9	g″″″	Six-lined	12543.854

v • d • 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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