"Voodoo" (1928) is perhaps Freeman's best known work. It deals with the cult of that name in Louisiana. Although Freeman finished composing the opera in 1914, it was not premiered until fourteen years later. On September 10, 1928, at Palm Garden at 310 West 52nd Street in New York's Broadway district, with an all-black cast. A May 20, 1928 concert performance of "Voodoo" was broadcast live on New York radio station WGBS, which Elise Kirk identifies as one of the earliest operas composed by an American to be broadcast on radio. It was the first opera by an African-American to be presented on Broadway. Its score combines themes from spirituals, Southern melodies, jazz, and traditional Italian opera.