After a successful New York début in 1943, he became co-founder of the Musicians’ Guild, a chamber music organization which he directed there until 1956.
He toured extensively in Europe, appearing at the 1953 and 1954 Prades festivals, and in South America, the USSR, Israel and Japan; he also played as a soloist with every important orchestra in the USA.
[1] A Ford Foundation grant in 1960 enabled him to commission Walter Piston’s Second Violin Concerto, the première of which he gave that year in Pittsburgh.
His style of playing was vigorous and large-scaled, with a masterful technique and a rich, warm tone.
A clear example of all this may be heard in his recording of Stravinsky's Duo Concertant (Decca, with Leo Smit).