upon graduation he played with numerous orchestras and performed concerts and recitals internationally. over the next three decades, he toured and recorded extensively, performing solo and with orchestras around the globe. in 1964, he recorded sergei rachmaninoff's "rhapsody on a theme of paganini" with leonard bernstein conducting the new york philharmonic. he also made a classic recording of sergei prokofiev's third piano concerto with george szell and the cleveland orchestra in 1966; it was reissued on cd as part of sony classical's "great performances" series in 2006.