In what style of art did Edward Purrington and Paul Hindemith collaborate?
Edward Purrington:  He had the fortune of getting to work directly with many fine opera composers during his years with the SFO, such as Igor Stravinsky, Paul Hindemith, Gian Carlo Menotti, and Krzysztof Penderecki. Paul Hindemith: Paul Hindemith ( ) (16 November 1895 – 28 December 1963) was a prolific German composer, violist, violinist, teacher and conductor.
i don't know