Complex sentence: Sniper was an early, New York Glam Punk band that formed in 1972, and were one of several bands that played at the Mercer Arts Center, alongside New York Dolls and Suicide.
Split into simpler sentences: Sniper was an early, New York Glam Punk band that formed in 1972. They were one of several bands that played at the Mercer Arts Center, alongside New York Dolls and Suicide.