Many decades have passed since it was a prime hangout for U.S. servicemen homesick for the jazzy sounds of Glenn Miller and his colleagues. In 1976, after passing through an R&B and jazz period that had Louis Armstrong puckering up for audiences, it sponsored the world’s first punk festival, and bands like the Sex Pistols—unsigned at the time—took the stage. This red-walled club still can’t decide which era to honor, so it careens between punk, swing, R&B, and jazz.