The premise is simple but powerful: Every song has a first recording (the "original"), and then it has a life. That life includes cover versions, samples, medleys, parodies, and even "same song" comparisons (e.g., classical pieces recorded by different orchestras). As of 2025, the database contains over 1.4 million performances of more than 900,000 distinct songs, making it the largest repository of cover song information on the web.
You can trace a sample chain.
