Hourly comic.

Igor Stravinsky (1882–1971) “I get up at about eight, do physical exercises, then work without a break from nine till one,” Stravinsky told an interviewer in 1924. Generally, three hours of composition were the most he could manage in a day, although he would do less demanding tasks—writing letters, copying scores, practicing the piano—in the afternoon. Unless he was touring, Stravinsky worked on his compositions daily, with or without inspiration, he said. He required solitude for the task, and always closed the windows of his studio before he began: “I have never been able to compose unless sure that no one could hear me.” If he felt blocked, the composer might execute a brief headstand, which, he said, “rests the head and clears the brain.” - From Daily Rituals: How Artists Work by Mason Currey