After a lesson with Jascha Heifetz, the master advised him to study with Ivan Galamian, who said he had "no weaknesses, never."
His Carnegie Hall debut took place in January 1950, at the age of 13, as soloist with the National Orchestral Association, playing Vieuxtemps' Concerto No.
Subsequently, he appeared with a number of American orchestras before his Carnegie Hall debut on 29 November 1951, at the age of 15, in the Paganini D major Concerto, with Dimitri Mitropoulos conducting the New York Philharmonic.
His first London appearance took place on 13 December 1954, at age 18, playing the Tchaikovsky Concerto in D at the Royal Albert Hall with the BBC Symphony Orchestra.
He toured widely, playing in all major cities in the U.S., Europe, South America, Southern Africa,[2] and Australia.