Task: Text Categorization
Input (English): He used "La Follia" as the basis for his last original solo piano composition, Variations on a Theme of Corelli. Unsatisfied with his revisions of his second piano sonata, he gave Horowitz authority to change it however he pleased. Glazunov's drunken conducting of his first symphony sent him into a three-year-long depression, which he once consulted Tolstoy about. He wrote an Elegiac Trio after the death of Tchaikovsky, who was set to conduct his symphonic fantasy The Rock. He referred to his third piano concerto, written for his first American tour, as "a piece for elephants". A painting by Bocklin inspired his Isle of the Dead, and he also set Poe's The Bells to music. FTP, identify this Russian composer who used a caprice for solo violin as the basis for arguably his most famous work, Rhapsody on a Theme by Paganini.
Output (English): Fine Arts