500+ artists
| Artist | Midi files | PDFs | Video covers |
|---|---|---|---|
| joyful | 2 | - | - |
| Jule Styne | 2 | 1 | - |
| Jun Ishikawa | 2 | 1 | - |
| Junichi Masuda | 2 | - | 1 |
| Junichi Nakatsuru | 2 | - | - |
| Justin Bieber | 2 | 1 | - |
| Kamikazee | 2 | - | - |
| Kasamiku | 2 | - | - |
| Kate Bush | 2 | 2 | - |
| Kendrick Lamar | 2 | - | - |
| kevidryon2 | 2 | - | - |
| Key After Key | 2 | - | - |
| Konomi Suzuki | 2 | 1 | - |
| Korolev | 2 | - | - |
| L. Edgar Settle | 2 | - | - |
| Lana Del Rey | 2 | 2 | - |
| LeaF | 2 | - | - |
| Led Zeppelin | 2 | - | - |
| Leon Riskin | 2 | - | - |
| Lewis Seals | 2 | - | - |
| Limp Bizkit | 2 | - | - |
| Linkin Park | 2 | 2 | - |
| Looking Glass Studios | 2 | - | - |
| Lord Huron | 2 | 1 | - |