The music of Israeli composer Avner Dorman is so vivacious and so technically proficient that it’s hard to resist…Bach is a constant presence, especially in the Piano Concerto, but Dorman also leaps happily around among jazz, pop, Romanticism and Middle Eastern strains…most rewarding is the Mandolin Concerto, which fuses Baroque and Middle Eastern gestures in unusual ways, and which ends with a surprising flourish.