The response of patients with stress problems to one of five music genres during biofeedback training is measured. Fifty male and female patients between the ages of 15 and 25 who were receiving psychotherapy, self-help counseling, and physical fitness training as well as biofeedback training comprised the sample. Using a Biofeedback Systems Electromyographic Feedback System Model PE-100, subjects listened to tapes on biofeedback, the principles of stress reduction, and progressive relaxation. Then they were randomly assigned to listen to one of five musical treatments: rock, jazz, minimalism (emphasis on repetition of a motif or group of motifs), classical, or silence (in which the only sound was that of the biofeedback tone). The music tapes were presented only once. Results indicate no difference in stress reduction among the various types of music. The authors are currently engaged in a second study in which all subjects will receive all five treatments. (KC)