Charles Ives, John CAGE, and Jerome Kern are all American composers who have made significant contributions to the world of music. Charles Ives is known for his experimental and innovative approach to composition, often incorporating elements of popular music into his works. John CAGE was a pioneer of avant-garde music, and his compositions often featured unconventional instrumentation and techniques. Jerome Kern was a prolific composer of musical theatre, and his works are still performed today. All three composers have had a lasting impact on American music.