Computer-assisted instructional programs have been developed at the State University College at Potsdam, New York, to teach basic concepts of music theory. The Computer-based Learning Experiences in Music Fundamentals (CLEF) project has spawned computer assisted instruction (CAI) programs which use an IBM 360/30 configuration with 2741 terminals and the Coursewriter, BASIC, and APL languages. CLEF is intended for students at all levels of proficiency and provides an opportunity for flexible, self-directed study. These CAI programs in music theory, fundamentals, and Greek theory are collateral to coursework, are usually recommended rather than required, are available to all students, and are organized to permit the student to take what he wants when he desires it. Future developments may permit CAI programs to teach harmonization, voice leading, cadence formulae, and compositional concepts; in addition, scores may be displayed, problem solving will be possible with APL, and electronic music can be studied using a FORTRAN-based program. To maximize CAI contributions, however, it will be necessary to overcome the assumptions that CAI must be programed instruction (which, additionally, is "friendly" to students), and that the computer is going to replace the teacher. (PB)