The two brothers retained the company name T. B. Harms, and established a partnership with the London firm of Francis, Day & Hunter, allowing them to market their songs in Britain.
In 1935, they reconstituted their holdings as Chappell, Inc., with Louis Dreyfus moving to London and Max remaining in control of their New York operations, based in the Rockefeller Center.
[4] He helped found ASCAP (the American Society of Composers, Authors and Publishers) in 1914, and served as a board member for fifty years until shortly before his death.
"[3] He remained in control of Chappell & Co. after World War II, with new writers including Alan Jay Lerner and Frederick Loewe, whose My Fair Lady he published.
Although other independent publishers took a larger share of the market after the war, Chappell also found success with South Pacific, The Sound of Music, Gypsy, and Funny Girl, among others.
There Victoria Dreyfus raised Percheron horses and cattle, and the couple entertained Richard Rodgers, Oscar Hammerstein, Jerome Kern, Cole Porter and other eminent musicians.