 For 11 years Varga held the position as principal cellist of the New York Philharmonic under the baton of the orchestra's music directors Dimitri Mitropoulos and Leonard Bernstein, and many guest conductors including Fritz Reiner and Guido Cantelli.He performed as soloist with orchestras in countries such as Australia, Japan, USA, the former Soviet Union, and throughout Europe.In music festivals such as Aspen, Chautauqua, and Shreveport, he has been spotlighted during the last 40 years for his duties as a soloist, chamber musician and teaching mentor.