500+ artists
| Artist | Midi files | PDFs | Video covers |
|---|---|---|---|
| Julian Bradley | 1 | 1 | - |
| Julius Bafunno | 1 | - | - |
| Julius Fučík | 1 | - | - |
| Jun maeda | 1 | 1 | - |
| Jun maeda Yanagi Nagi | 1 | - | - |
| Jun Senoue | 1 | - | - |
| juna | - | 1 | - |
| Juna Clairo | 1 | - | - |
| Jung Jae-il | 1 | - | - |
| Jung Kook | 1 | - | - |
| JungoJam | 1 | - | - |
| jurMuthor | 1 | - | - |
| Jurrivh | 1 | - | - |
| justatee | 1 | - | - |
| Justin | 1 | 1 | - |
| Justin Ringleben | 1 | - | - |
| Jxjdje | 1 | - | - |
| Jynx(?) | 1 | - | - |
| k jenk | 1 | - | - |
| kaesul | - | 1 | - |
| Kahoot! | 1 | - | - |
| Kai Rosenkranz | 1 | - | 1 |
| Kaijuno8 | 1 | - | - |
| Kaikhosru Shapurji Sorabji | 1 | - | - |