Bassist Rob Wasserman will join his daughter Sara for a pair of performances later this month. The Wassermans will open for New Orleans keyboardist Henry Butler on December 22 and 23 at San Franciscos Biscuit n Blues and also perform with the evenings headliner during his set. As previously reported, the elder Wasserman will help Lou Reed interpret his 1973 album, Berlin, onstage at New Yorks St. Ann’s Warehouse from December 14-17.