Work: Passagen, for solo violin

Jennifer Koh and Ensemble LPR helped celebrate the five-year anniversary of (Le) Poisson Rouge Friday night, with a lively program of works by John Zorn, Charles Wuorinen and Ludwig van Beethoven. The club-like atmosphere of LPR was in full swing before the show began, waiters ferrying salads and glasses of wine as percussionists adjusted their instruments on stage under colored blooms of light.