The document provides information about three Baroque composers: George Frideric Handel, who wrote the oratorio Messiah in only 28 days and is known for the "Hallelujah" chorus; Johann Sebastian Bach, a German composer who was skilled at the organ, harpsichord, and other instruments and composed the Fugue in G minor; and Antonio Vivaldi, an Italian composer known for his concertos including The Four Seasons, specifically the spring movement which uses tone painting to depict the season.