| operetta(art, performance, music, noun) |
| oratorio(art, performance, music, noun) |
| orchestra(art, performance, music, noun) |
| orchestrate(art, performance, music, verb) |
| orchestration(art, performance, music, noun) |
| organ(art, performance, music, noun) |
| organ trio(art, performance, music, expression) |
| organum(art, performance, music, noun) |
| overture(art, performance, music, noun) |
| paraphrase mass(art, performance, music, expression) |
| parody mass(art, performance, music, expression) |
| partita(art, performance, music, noun) |
| passacaglia(art, performance, music, noun) |
| passepied(art, performance, music, noun) |
| pavane(art, performance, music, noun) |
| piano concerto(art, performance, music, expression) |
| piano music(art, performance, music, expression) |
| piano quartet(art, performance, music, expression) |
| piano quintet(art, performance, music, expression) |
| piano sonata(art, performance, music, expression) |