Abstract: A computer program for an interactive computer music game is stored on a medium that can be read by a general purpose computer. When read and executed, the program causes the computer to perform functions, including associating a music track on a user compact disc (CD) inserted in the computer's CD-ROM drive with a selected song associated with a music track on a reference CD, and synchronizing music data stored by the computer to the music track on the user CD, where the music data has been derived from the music track on the reference CD associated with the selected song. The program generates user-CD data characteristic of the digital data on the user-CD track, and compares the user-CD data with reference-CD data characteristic of the digital data on the reference-CD track.