Conrad produced the Broadway show The Honeymoon Express, starring Al Jolson, in 1913.
He co-composed "Margie" in 1920 with J. Russel Robinson and lyricist Benny Davis, which became his first major hit.
He went on to compose hits that became standards, including: In 1923, Conrad focused on the stage and wrote the scores for the Broadway shows: The Greenwich Village Follies, Moonlight, Betty Lee, Kitty’s Kisses and Americana.
[1] In 1924 the Longacre Theatre staged the small musical Moonlight, with a score by Conrad and William B. Friedlander.
There he worked on films such as Fox Movietone Follies, Palmy Days, The Gay Divorcee and Here’s to Romance.