Original sentence: He has been invited on the juries of many international piano competitions including those in Leeds, Moscow (Tchaikovsky), Vienna (Beethoven), Warsaw (Chopin), Tel Aviv (Rubinstein), Beijing, Shanghai, Munich, Bolzano (Busoni), Cologne, Vevey (Clara Haskil), Cleveland, Salt Lake City (Gina Bachauer), Sydney, Pretoria, London, College Park (William Kapell), Valencia (Jose Iturbi) and Seoul.In 1973 O'Conor was unanimously awarded First Prize at the International Beethoven Piano Competition in Vienna which launched his international career, and in 1975 he won First Prize at the Bösendorfer Competition
Edited sentence: He has been invited on the juries of most of the world's most prestigious international piano competitions including those in Leeds, Moscow (Tchaikovsky), Vienna (Beethoven), Warsaw (Chopin), Tel Aviv (Rubinstein), Beijing, Shanghai, Munich, Bolzano (Busoni), Cologne, Vevey (Clara Haskil), Cleveland, Salt Lake City (Gina Bachauer), Sydney, Pretoria, London, College Park (William Kapell), Valencia (Jose Iturbi) and Seoul.In 1973 O'Conor was unanimously awarded First Prize at the prestigious International Beethoven Piano Competition in Vienna which launched his international career, and in 1975 he won First Prize at the Bösendorfer Competition