| Site | ISRC | ISWC | IPI codes | Writers | Publishers |
|---|---|---|---|---|---|
| ASCAP | No | Yes | Yes | Yes | Yes |
| BMI | No | No | Yes | Yes | Yes |
| IFPI | Yes | No | No | No | No |
| International Music Score Library Project | No | No | No | Yes | No |
| PPL Repertoire Search | Yes | No | No | No | No |
| SCPP | Yes | No | No | No | No |
| 國家圖書館 | Yes | No | No | Yes | No |