He was a singer in the Opera, Oratorio and Lieder genres and was renowned for his silky voice and outstanding declamation and musicality.
He studied with Eva Kutrucz at the Franz Liszt Academy of Music, 1967–72, and later privately with Hans Hotter and Yevgeny Nesterenko.
[2] Other notable roles of his included Oroveso, Giorgio, Il Prefetto, Walter, Padre Guardiano, and Filippo.
He is perhaps best known for his interpretation of the title role in Bartók's Bluebeard's Castle, which he sang several times with distinction, and also recorded with soprano Jessye Norman, conductor Pierre Boulez, and the Chicago Symphony Orchestra.
Polgár taught at the Hochschule für Musik in Winterthur, Switzerland, and also at the Franz Liszt Academy in Budapest.