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G, also calledSol orSo, is the fifthnote of thefixed-do solfège starting onC. It is the fifthnote and the eighthsemitone of thesolfège. As such it is thedominant, aperfect fifth above C orperfect fourth below C.
When calculated inequal temperament with a reference ofA abovemiddle C as 440Hz, thefrequency ofmiddle G (G4) note is approximately 391.995 Hz.[1] Seepitch for a discussion of historical variations in frequency.
It has enharmonic equivalents of F
(F-double sharp) and A
(A-double flat).
In themedieval period the musical note G was known asgesolreut within theGuidonian handhexachord system.[2]
| Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) | MIDI note number |
|---|---|---|---|---|
| G−1 | G͵͵͵ or ͵͵͵G or GGGG | Subsubcontra | 12.25 | 7 |
| G0 | G͵͵ or ͵͵G or GGG | Subcontra | 24.5 | 19 |
| G1 | G͵ or ͵G or GG | Contra | 48.999 | 31 |
| G2 | G | Great | 97.999 | 43 |
| G3 | g | Small | 195.998 | 55 |
| G4 | g′ | One-lined | 391.995 | 67 |
| G5 | g′′ | Two-lined | 783.991 | 79 |
| G6 | g′′′ | Three-lined | 1567.982 | 91 |
| G7 | g′′′′ | Four-lined | 3135.963 | 103 |
| G8 | g′′′′′ | Five-lined | 6271.927 | 115 |
| G9 | g′′′′′′ | Six-lined | 12543.854 | 127 |
| G10 | g′′′′′′′ | Seven-lined | 25087.708 | N/A |
It is the first note of the 2006 song "Welcome to the Black Parade" byMy Chemical Romance, which made the note ameme.[3]
