Watch Solo for Free: How to Stream the Movie Online at 123Movies. . Lopushansky's second film focuses on a few hours in the life of a soloist musician during the siege of Leningrad, in WWII. The Leningrad philharmonic is going to play Tchaikovsky's 5th Symphony, which is to be broadcast to England. The soloist, like his fellow musicians, is weak and half-starved, and doubts whether he will be able to perform well enough.