I’ve noticed a concert trend at theaters, for me anyway. First show I saw at a Theatre (Orpheum) was Morrissey. Now, I had heard of Morrissey at the time (October 30, 2007) and knew a few of his songs. That turned out to be a good show. Then, I saw Editors in January 2008 at the  Orpheum. I knew a few of Editors really good songs, but overall I wasn’t tremendously familiar with their set. The Orpheum mega-show on September 27, 2008 that featured Built to Spill, Dinosaur Jr., and Meat  Puppets was the  same deal for me: I knew a few songs from each band. Then on January 24, 2009, we caught Mission of Burma at the Somerville Theatre. Their set list was fairly unfamiliar to me as well. The bottom line is I expect tonight’s Sonic Youth/Feelies show to be quite similar to these prior theater performances. They’ve all been good or great, despite me not knowing most of the songs played.