Music therapy is a research-based healthcare profession that uses music interventions within a therapeutic relationship to achieve outcomes in various clinical domains such as psychological, physical, and social. It is commonly used to treat Parkinson's disease by maintaining speech and motor skills through techniques like voice training and rhythmic auditory stimulation. Research shows music therapy improves variables related to singing ability, speech intelligibility, vocal intensity, mood, and gait in individuals with Parkinson's disease. It is a promising treatment approach supported by a growing evidence base.