G (musical note)
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Sol, so, or G is the fifth note of the fixed-do solfège starting on C. As such it is the dominant, a perfect fifth above C or perfect fourth below C.
When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of middle G (G4) note is approximately 391.995 Hz. See pitch for a discussion of historical variations in frequency.
It has enharmonic equivalents of F
(a diatonic semitone below G♯) and A
(a diatonic semitone above G♭).
Designation by octave
| Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) |
|---|---|---|---|
| G−1 | G͵͵͵ or ͵͵͵G or GGGG | Subsubcontra | 12.250 |
| G0 | G͵͵ or ͵͵G or GGG | Subcontra | 24.500 |
| G1 | G͵ or ͵G or GG | 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 | 3135.963 |
| G8 | g′′′′′ | Five-lined | 6271.927 |
| G9 | g′′′′′′ | Six-lined | 12543.854 |
| G10 | g′′′′′′′ | Seven-lined | 25087.708 |
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
- 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
- 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
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