Music therapy is the supervised and therapeutic use of music by a credentialed therapist to promote positive clinical outcomes. It can be a valuable form of complementary medicine in the oncology setting to decrease patient stress and anxiety, relieve pain and nausea, provide distraction, alleviate depression, and promote the expression of feelings. The music therapist assesses the patient and consults other members of the multidisciplinary team to create a therapeutic treatment plan. Music therapists design music sessions based on patients' needs and their intended therapeutic goals. Patients can participate actively or passively in individual or group sessions. Only a credentialed music therapist can provide safe and beneficial music therapy interventions.