Perceptive listening is obviously crucial to the musical experience. Developing perceptive listening in students of widely varying levels of aptitude and achievement is a great challenge for any music teacher. Efforts must be individualized to be effective, and computer-based instruction provides the necessary tools for individualization. The incorporation of CD-ROM into a tutorial environment gives the student an opportunity to explore a vast quantity of music in a structured setting. A tutorial was constructed for an IBM-compatible microcomputer with CD-ROM and videodisc players attached. The tutorial, which was written in Microsoft QuickBASIC, tracked learner performance and provided remediation on various aural (listening) objectives given to college music appreciation students. (5 references) (Author/BBM)