| Abbreviation | Definition |
|---|---|
| GSO | Georgia Symphony Orchestra |
| GSO | Glenbrook Symphony Orchestra |
| GSO | Greensboro Symphony Orchestra |
| GSO | Greenville Symphony Orchestra |
| GSO | Guangzhou Symphony Orchestra |
| GSO | Gunma Symphony Orchestra |
| GSO | The Golden Symphonic Orchestra |
| GSOR | Good Sense Of Rhythm |
| GST | Giga Squad Team |
| GSYO | Guangzhou Symphony Youth Orchestra |
| GT | Grand Tourism |
| GTA | Grand Theft Audio |
| GTB | Grand Traverse Band |
| GTM | Ghost Trance Music |
| GTM | Gospel Through Music |
| GTPO | Greater Toronto Philharmonic Orchestra |
| GTTM | Generative Theory of Tonal Music |
| GTTM | Give to the Music |
| GUO | Gayan Uttejak Orchestra |
| GVF | Greta Van Fleet |