Focal dystonia among musicians manifests as involuntary movements during musical performance, which may potentially ruin the musicians’ professional careers. Based on the preceding studies concerning pathophysiology of focal dystonia, the authors assumed that focal dystonia is mainly triggered by abnormal sensory input caused by dysmyotonia or shortened soft tissues, thereby decreasing the inhibitory system activities in the cerebral cortex. This report depicts how a focal dystonia patient, a professional cellist, went through a six-month course of regular outpatient treatments, in which the patient’s abnormal soft tissues were intervened. After the course, combined with the patient’s self-maintenance routines monitored through interviews, both the pain and abnormal muscle tension were reduced, improving symptoms of focal dystonia.