Computer aided music therapy evaluation: Testing the Music Therapy Logbook prototype 1 system

Research indicates that music therapists are likely to make use of computer software, designed to measure changes in the way a patient and therapist make use of music in music therapy sessions. A proof of concept study investigated whether music analysis algorithms (designed to retrieve information from commercial music recordings) can be adapted to meet the needs of music therapists. Computational music analysis techniques were applied to multi-track audio recordings of simulated sessions, then to recordings of individual music therapy sessions; these were recorded by a music therapist as part of her ongoing practice with patients with acquired brain injury.The music therapist wanted to evaluate two hypotheses: one, whether changes in her tempo were affecting the tempo of a patient's play on acoustic percussion instruments, and two, whether her musical interventions were helping the patient reduce habituated, rhythmic patterning. Automatic diagrams were generated that gave a quick overview of the instrumental activity contained within each session: when, and for how long each instrument was played. From these, computational analysis was applied to musical areas of specific interest. The results of the interdisciplinary team work, audio recording tests, computer analysis tests, and music therapy field tests are presented and discussed.

► We analysed music in which a patient played acoustic percussion instruments and the therapist a MIDI piano. ► We presented computer generated diagrams that track instrumental use changing over time. ► Our clinical test site was a neuro-rehabilitation unit. ► The clinical music therapist provided the evaluation questions. ► Real life evaluation questions were matched to music information retrieval techniques.