| 8491 | Musica | ZX-Spectrum 48K | Spanish |
| 24584 | Musica | ZX-Spectrum 48K | Italian |
| 26313 | Musica | ZX-Spectrum 48K | Italian |
| 18584 | Musica | ZX-Spectrum 48K | Spanish |
| 17009 | Musica Simultanea | ZX-Spectrum 48K | Spanish |
| 45171 | Musical Intervals and Scales Tester | ZX-Spectrum 48K | English |
| 17152 | Musicfile | ZX-Spectrum 48K | English |
| 35848 | Musicmaker | ZX-Spectrum 48K | English |
| 4000092 | Musicola | Timex Tx2068 | English |
| 8496 | Musicrema | ZX-Spectrum 48K | English |
| 27860 | New Beep | ZX-Spectrum 48K | Italian |
| 37831 | NextSID | ZX-Spectrum Next | English |
| 8512 | Notemaker | ZX-Spectrum 16K | English |
| 8513 | Nuty | ZX-Spectrum 48K | Polish |
| 43994 | O Little Town of Bethlehem | ZX-Spectrum 16K/48K | English |
| 39379 | O Órgão | ZX-Spectrum 48K | Portuguese |
| 27143 | ORGANize | ZX-Spectrum 48K | English |
| 27890 | OUTplay | ZX-Spectrum 128K | English |
| 11968 | Oliver's Music Box | ZX-Spectrum 48K | English |
| 17880 | Opus1 | ZX-Spectrum 48K | English |