This controlled prospective cohort study is designed to assess the feasibility and effect of bi-weekly non-traditional guitar classes on PD patient's self-reported and measurable outcomes including upper extremity function, motor findings, quality of life, mood, and cognitive findings. Prior to conducting a larger study, this study seeks to assess the possibility that participation in an instrumental performance activity in a group setting may improve outcomes in PD patients. Twelve patients with PD will be recruited to participate in the guitar class group (intervention) in addition to usual treatment, while another group of 12 patients with PD will be recruited to the control group to receive only their usual treatment.