They showed less signs of their depression than the other groups did. This short web page describes an experiment that examined the effects of music therapy and guided imagery on healthy adults. It describes the many different changes that resulted from the patients in the experimental group compared to the control group. The article gave examples of experiences that happened recently. One example described a psychotic male in his 30's who regained control of his emotions by playing the saxophone.
Music is also an energizer and lessens fatigue.
Music may help release emotions when nothing else works. This article reports on a follow up of an experiment with 30 depressed older adults in Palo Alto, California. At the end of the nine weeks the patients were given a posttest. After nine months the patients were given a follow up test. The self-administered group scored their best on this test.