G, also called Sol or So, is the fifth note of the fixed-do solfège starting on C. It is the fifth note and the eighth semitone of the solfège. 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.[1] See pitch for a discussion of historical variations in frequency.
It has enharmonic equivalents of F (F-double sharp) and A (A-double flat).
| Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) | |
|---|---|---|---|---|
| G−1 | G͵͵͵ or ͵͵͵G or GGGG | Subsubcontra | ||
| G0 | G͵͵ or ͵͵G or GGG | Subcontra | ||
| G1 | G͵ or ͵G or GG | Contra | ||
| G2 | G | Great | ||
| G3 | g | Small | ||
| G4 | One-lined | |||
| G5 | Two-lined | |||
| G6 | Three-lined | |||
| G7 | Four-lined | |||
| G8 | Five-lined | |||
| G9 | Six-lined | |||
| G10 | Seven-lined |
It is the first note of the 2006 song "Welcome to the Black Parade" by My Chemical Romance, which made the note a meme.[2]