“Could the mandolin become your new favorite instrument? It actually could, after hearing Avi Avital play it. Metropolis Ensemble, one of the most exciting things to happen to classical music in the city, with Mr. Avital as soloist, has snagged a Grammy nomination for their CD of Avner Dorman’s Mandolin Concerto. Celebrate at Le Poisson Rouge, tonight, 8pm, free.”