The ballet Dybbuk was Bernstein�s fourth and final collaboration with choreographer Jerome Robbins, written to celebrate the 25th anniversary of the state of Israel. The plot concerns a spirit that seeks to enter the body of a living person, and the battle between good and evil is represented musically by the conflict between atonality and tonality. Different in every respect is the symphonically-conceived ballet Fancy Free. It follows three sailors on shore leave in New York for 24 hours, and when it was premi�red in 1944 it brought Bernstein his first major public success as a composer.