He has performed in bands since the age of 18.
Sound processing of the human auditory system is performed in so-called critical bands.
By the age of 16 he began performing in bands.
He has performed in many side projects and bands.
He later played at the jazz ensemble in his high school and went on to perform in local bands.
During their teenage years they performed in local bands throughout the city of Philadelphia.
Chapman performed in bands throughout high school and college.
He later went on to perform in several live bands and compose music for theatre.
As a teenager she began performing in local bands.
The members continue to perform locally in several bands including: