[1] He was one of a handful of violinists to record klezmer music in Europe before World War I, as well as a number of discs where he accompanies Yiddish theatre singers.
[11] He was also an arranger, musical director and bandleader for some Yiddish theatre troupes in Galicia, including those of Norbert Glimer, Moshe Richter, and Bert Hart.
[3][7] In 1924 Oscar launched a variety series in Lemberg called Shiyeles Variete which starred Broder-zinger style performers.
[7] In 1932 Oscar's nephew, Fredrick "Fredzio" Zehngut, who was a professional dancer, was killed in a personal dispute while living in Nice.
Zehngut, along with H. Steiner, Joseph Solinski, and other European klezmer violinists became the source for tone and techniques for a younger generation of musicians.