G♭ (musical note)
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![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/G_Flat.png/220px-G_Flat.png)
G flat
G♭ (G-flat; also called Ges or sol bémol) 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♯ (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.
Designation by octave[]
Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) |
---|---|---|---|
G♭−1 | G♭͵͵͵ or ͵͵͵G♭ or GGGG♭ | Octocontra | 11.562 |
G♭0 | G♭͵͵ or ͵͵G♭ or GGG♭ | Subcontra | 23.125 |
G♭1 | G♭͵ or ͵G♭ or GG♭ | Contra | 46.249 |
G♭2 | G♭ | Great | 92.499 |
G♭3 | g♭ | Small | 184.997 |
G♭4 | g♭′ | One-lined | 369.994 |
G♭5 | g♭′′ | Two-lined | 739.989 |
G♭6 | g♭′′′ | Three-lined | 1479.978 |
G♭7 | g♭′′′′ | Four-lined | 2959.955 |
G♭8 | g♭′′′′′ | Five-lined | 5919.911 |
G♭9 | g♭′′′′′′ | Six-lined | 11839.822 |
G♭10 | g♭′′′′′′′ | 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♭ 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-flat major
- G-flat minor
- Root (chord)
Categories:
- Musical notes
- Music theory stubs