Piatigorsky, Gregor definition of Piatigorsky, Gregor in the Free Online Encyclopedia.

Piatigorsky, Gregor (pyätĭgôr`skē), 1903–76, Ukrainian-American cellist. Piatigorsky studied with his father and at the Moscow Conservatory. In 1924 he became first cellist of the Berlin Philharmonic, leaving in 1928 to perform solo. He moved (1929) to the United States, where he taught and performed with enormous success. Concertos were written for him by several composers, including Hindemith Hindemith, Paul (hĭn`dəmĭth), 1895–1963, German-American composer and violist, b. Hanau, Germany.
..... Click the link for more information. and Prokofiev Prokofiev, Sergei Sergeyevich (syĭrgā` syĭrgā`əvĭch prōkôf`ēĕf)
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Piatigorsky, Gregor (1903–76) cellist; born in Ekaterinoslav, Russia. He played cello in Moscow orchestras before emigrating to Warsaw and then Berlin, where he became first chair in the Philharmonic (1924–28). Moving to America in 1929, he began a long and distinguished career as a soloist, teacher, and chamber musician, gaining a reputation as perhaps the finest player of the cello after Pablo Casals. He went into semiretirement in the 1970s.