Complex sentence: Born in Sanok, Didur studied in Lwow with Valery Wysocki, later working with Franz Emmerich in Milan; his concert debut came in that city in a performance of Ludwig van Beethoven's Ninth Symphony.
Split into simpler sentences: Born in Sanok, Didur studied in Lwow with Valery Wysocki, later working with Franz Emmerich in Milan. His concert debut came in Milan in a performance of Ludwig van Beethoven's Ninth Symphony.