The Hungarian violinist, conductor and educator, Frigyes Sándor (younger brother of pianist Renée Sándor; husband of cellist Vera Dénes), studied at the Musical College in Budapest by Gyula Mambriny and Imre Waldbauer. From 1926 he was concert master, from 1936 assistant conductor in the Budapest Choral and Orchestra Association. Gradually, he had to abandon instrument playing because of problems with his arm.