Music venues are, by and large, historically provisional ventures. San Francisco’s Winterland Ballroom, the setting for The Band’s Last Waltz in 1976 had its last waltz in 1978. The birthplace of punk, CBGB, closed in 2006 at 33-years of age––which is too old for punk, perhaps. The Fillmore East was only around for three years. Which is why San Marco’s …