recorded roughly 30 sides for Victor Records in 1916-7, including especially Romanian music, but also ragtime, klezmer, and various European and South American pieces. His recordings from that era were all made with piano accompaniment, usually by Max Yussim, who he occasionally performed in concert with as well. His wide performing repertoire and deep knowledge of Romanian music also apparently influenced other Jewish recording artists in the New York area, such as Dave Tarras. He soon relocated to Houston Street and opened Little Rumania. The restaurant became quite popular, especially among Romanian Jews and young writers, and was soon expanded into the adjoining cellar to make room for the growing clientele. There, Moskowitz played his instrument, often sharing the stage with top violinists and pianists. Stephen Graham, a British writer who spent time in New York in the 1920s, wrote an account of a night he spent in Little Rumania. He said that earlier in the evening, Moskowitz circulated among the guests while a singer and pianist performed Yiddish and American numbers. Then, when the place was full, Moskowitz got on stage and performed various European folk numbers (Romanian, Hungarian, Russian, French) as well as some light classical music by Tchaikovsky and Brahms. It was only much later in the night that he would play dance tunes which were danced by a group of Jewish men. He later opened a new restaurant on Second Avenue at Second Street called Moskowitz & Lupowitz. This new upscale restaurant began to attract celebrities, bohemians, and writers, including Jascha Heifetz, Eddie Cantor, Sid Caesar, Mischa Elman, Joseph Pulitzer, Abraham Reisen and H. L. Mencken. He continued to entertain his patrons with his music performances late into the night, as they ate the hearty Romanian Jewish cuisine. In the 1920s Moskowitz regularly performed on the radio in the New York area, on stations such as WGBS, WEAF, and the WJZ network. These were often solo performances, but also often included accompaniment by his longtime pianist Max Yussim. The music he played on the radio often consisted of classical works or his own arrangements of Russian, Romanian and Jewish folk music. He also came to the attention of Samuel Roxy Rothafel and became an occasional featured artist of his popular "Roxy and the Gang" series. Moskowitz appeared on stage regularly in this era as well, including at Carnegie Hall and New York's Town Hall. Joseph remarried