G♭ (musical note)



G♭ (G-flat) or Sol Bémol is the seventh semitone of the solfege.

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.

Contents 1 Designation by octave 2 Scales 2.1 Common scales beginning on G♭ 2.2 Diatonic scales 2.3 Jazz Melodic Minor 3 See also

Designation by octave
Scientific designation

Helmholtz designation

Bilinear music notation

Octave name

Frequency (Hz)

G♭-1 G♭͵͵͵ or ͵͵͵G♭ or GGGG♭ (-uG♭) Subsubcontra 11.562 G♭0 G♭͵͵ or ͵͵G♭ or GGG♭ (-vG♯) Subcontra 23.125 G♭1 G♭͵ or ͵G♭ or GG♭ (-wG♭) Contra 46.249 G♭2 G♭ (-xG♭) Great 92.499 G♭3 g♭ (-yG♭) Small 184.997 G♭4 g♭′ (zG♭) One-lined 369.994 G♭5 g♭′′ (yG♭) Two-lined 739.989 G♭6 g♭′′′ (xG♭) Three-lined 1479.978 G♭7 g♭′′′′ (wG♭) Four-lined 2959.955 G♭8 g♭′′′′′ (vG♭) Five-lined 5919.911 G♭9 g♭′′′′′′ (uG♭) Six-lined 11839.822 G♭10 g♭′′′′′′′ (tG♭) Seven-lined 23679.643

Scales
Common scales beginning on G♭ G♭ Major: G♭ A♭ B♭ C♭ D♭ E♭ F G♭ G♭ Natural Minor: G♭ A♭ Bdouble flat C♭ D♭ Edouble flat F♭ G♭ G♭ Harmonic Minor: G♭ A♭ Bdouble flat C♭ D♭ Edouble flat F G♭ G♭ Melodic Minor Ascending: G♭ A♭ Bdouble flat C♭ D♭ E♭ F G♭ G♭ Melodic Minor Descending: G♭ F♭ Edouble flat D♭ C♭ Bdouble flat A♭ G♭

Diatonic scales G♭ Ionian: G♭ A♭ B♭ C♭ D♭ E♭ F G♭ G♭ Dorian: G♭ A♭ Bdouble flat C♭ D♭ E♭ F♭ G♭ G♭ Phrygian: G♭ Adouble flat Bdouble flat C♭ D♭ Edouble 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♭ Bdouble flat C♭ D♭ Edouble flat F♭ G♭ G♭ Locrian: G♭ Adouble flat Bdouble flat C♭ Ddouble flat Edouble flat F♭ G♭

Jazz Melodic Minor G♭ Ascending Melodic Minor: G♭ A♭ Bdouble flat C♭ D♭ E♭ F G♭ G♭ Dorian ♭2: G♭ Adouble flat Bdouble flat 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♭ Edouble flat F♭ G♭ G♭ Locrian ♮2: G♭ A♭ Bdouble flat C♭ Ddouble flat Edouble flat F♭ G♭ G♭ Altered: G♭ Adouble flat Bdouble flat Cdouble flat Ddouble flat Edouble flat F♭ G♭