The West Side Tremble Clefs will perform at 1 p.m. Friday, Dec. 1, at the Life Church Peoria, 8765 W. Kelton Lane, building A2.

The concert is open to the public.

The Tremble Clefs are music therapy groups for people with Parkinson’s disease, their family members and care givers with no musical experience expected or required.

Parkinson’s disease is a neurological disease that causes deterioration of muscles throughout the body including loss of voice.

The purpose of the Tremble Clefs is to intervene the voice loss by improving voice volume and speech through singing and focused exercise. Singing not only improves voice but also improves movement and mood allowing us to live well with Parkinson’s disease.

Visit TrembleClefsArizona.org for additional information about the group and future concerts. The site also includes practice locations, dates and times for those who may be interested in participation.