Gregor Piatigorsky began playing the cello at the age of seven and was admitted to the Moscow Conservatory at nine, studying there with Alfred von Glehn. In 1919, he joined the Lenin Quartet and was appointed principal cellist of the Bol'shoy Theater Orchestra. In 1921, Piatigorsky left the Soviet Union, going to Leipzig by way of Warsaw, and studied for a time with Julius Klengel. Furtwängler appointed him principal cellist of the Berlin Philharmonic in 1924 where he came into contact with the leading German musicians of the time, including Schnabel and Flesch, with whom he f...