Task: Text Categorization
Input (English): One of his solo compositions closes with an "obligatory cadenza" which mostly consists of huge F major chords. He composed the score to a ballet in which he appears in a short film played between the two acts, designed in collaboration with Francis Picabia. This composer of Relache also wrote the "symphonic drama" Socrate, and a set of piano pieces in which the performer is instructed to "arm yourself with clairvoyance." He composed (*) Truly Flabby Preludes for a dog, as well as a piece which depicts sea cucumbers and crustaceans. He also wrote three piano pieces inspired by Flaubert's Salammbo and by the festivals of ancient Greece. For 10 points, name this mentor of Les Six, an eccentric Frenchman who composed the Gnossienes, Desiccated Embryos, and three Gymnopedies.
Output (English): Fine Arts