| Oske7 | 1 Guitar Pro Tab |
| Osker | 3 Guitar Pro Tabs |
| Osmi Putnik | 24 Guitar Pro Tabs |
| Ossastorium | 2 Guitar Pro Tabs |
| OSSIAN | 41 Guitar Pro Tabs |
| OST World of Warcraft | 1 Guitar Pro Tab |
| Osvajaci | 6 Guitar Pro Tabs |
| Osvaldo Farres | 1 Guitar Pro Tab |
| OT3P | 3 Guitar Pro Tabs |
| Otep | 12 Guitar Pro Tabs |
| otherwise | 4 Guitar Pro Tabs |
| Otis Readding | 1 Guitar Pro Tab |
| Otis Redding | 7 Guitar Pro Tabs |
| Otis Taylor | 2 Guitar Pro Tabs |
| Otm Shsnk jazz qwintet | 1 Guitar Pro Tab |
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