An American hardcore punk band formed in WAshington DC in 1977 often played at a club in New York City that was the unofficial headquarters of the New York hardcore scene, and was located in what area of Manhattan?
A7 (bar): A7 was a club in New York City. A7 (bar):  From 1981 to 1984, it was the unofficial headquarters of the New York hardcore scene. A7 (bar):  The tiny space was located on the southeast corner of East 7th Street and Avenue A in Manhattan's East Village. A7 (bar):  and hardcore bands would play on the bill, including hardcore icons Bad Brains, and gradually the A7 club turned into a hardcore scene. Bad Brains: Bad Brains are an American hardcore punk band formed in Washington, D.C., in 1977.
East Village