RWC stands for Real World Computing. It is a large-scale music database whose contents have been copyrighted and can be used as a reference by relevant researchers, making important contributions to the future development of the field of music information processing.

The database contains 6 original databases: Pop Music Database (100 songs), Royalty Free Music Database (15 songs), Classical Music Database (50 songs), Jazz Music Database (50 songs), Music Genre Database (100 songs) and Instrument Sound Database (50 instruments.