Watch A Morte de Tchaikovsky Full Movie Free Online 123Movies. Pyotr Tchaikovsky is an acclaimed composer of classical music who died on November 6, 1893, in St. Petersburg, victim of an unidentified cause. Following the process of musical creation of this mythical composer, we understand that his works do not come from where we think. It is revealed, then, that the speculation surrounding his death has a plausible cause. Suicide? Anger? Assassination? How did this immortal composer die?