Jazz age had a huge influence on Broadway once it became ‘socially acceptable’ to middle-class white Americans, prominent in Shuffle Along (1921) Max Dreyfus pioneered a new style of orchestration for theatre performances, establishing a company policy where composers, lyricists, etc were all in partnership with the publishing company. He insisted on exclusive contracts for writers and orchestrators on Broadway shows. Almost all of the most successful songwriters and orchestrators (except Berlin) were under his contract