G♯ (musical note)

G♯ (G-sharp) or Sol Dièse is the ninth semitone of the solfege. In the German pitch nomenclature, it is known as "gis."

It lies a chromatic semitone above G and a diatonic semitone below A, thus being enharmonic to La Bémol or A♭ (A flat).

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the G♯ semitone is 415.305 Hz. See pitch (music) for a discussion of historical variations in frequency.

Designation by octave

Scientific designation	Helmholtz designation	Bilinear music notation	Octave name	Frequency (Hz)
G♯-1	G♯͵͵͵ or ͵͵͵G♯ or GGGG♯	(-uG♯)	Subsubcontra	12.978
G♯0	G♯͵͵ or ͵͵G♯ or GGG♯	(-vG♯)	Subcontra	25.957
G♯1	G♯͵ or ͵G♯ or GG♯	(-wG♯)	Contra	51.913
G♯2	G♯	(-xG♯)	Great	103.826
G♯3	g♯	(-yG♯)	Small	207.652
G♯4	g♯′	(zG♯)	One-lined	415.305
G♯5	g♯′′	(yG♯)	Two-lined	830.609
G♯6	g♯′′′	(xG♯)	Three-lined	1661.219
G♯7	g♯′′′′	(wG♯)	Four-lined	3322.438
G♯8	g♯′′′′′	(vG♯)	Five-lined	6644.875
G♯9	g♯′′′′′′	(uG♯)	Six-lined	13289.750
G♯10	g♯′′′′′′′	(tG♯)	Seven-lined	26579.501

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

• G♯ Ionian: G♯ A♯ B♯ C♯ D♯ E♯ F G♯
• G♯ Dorian: G♯ A♯ B C♯ D♯ E♯ F♯ G♯
• G♯ Phrygian: G♯ A B C♯ D♯ E 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 C♯ D♯ E F♯ G♯
• G♯ Locrian: G♯ A B C♯ D E F♯ G♯

Jazz Melodic Minor

• G♯ Ascending Melodic Minor: G♯ A♯ B C♯ D♯ E♯ F G♯
• G♯ Dorian ♭2: G♯ A B C♯ D♯ E♯ F♯ G♯
• G♯ Lydian Augmented: G♯ A♯ B♯ C D E♯ F G♯
• G♯ Lydian Dominant: G♯ A♯ B♯ C D♯ E♯ F♯ G♯
• G♯ Mixolydian ♭6: G♯ A♯ B♯ C♯ D♯ E F♯ G♯
• G♯ Locrian ♮2: G♯ A♯ B C♯ D E F♯ G♯
• G♯ Altered: G♯ A B C D E F♯ G♯

See also

• Piano key frequencies
• G-sharp major
• G-sharp minor