Question: What is the cause of death of composer of song None But The Lonely Heart (Tchaikovsky)?
Sentence (from "Pyotr Ilyich Tchaikovsky"): Others dismissed Tchaikovsky's music as "lacking in elevated thought", according to longtime "New York Times" music critic Harold C. Schonberg, and derided its formal workings as deficient because they did not stringently follow Western principles.
Relevant evidence: No