http://www.emory.edu/MUSIC/ARNOLD/penderecki_content.html Emory University: 20th-Century Music: Krzysztof Penderecki Description of his compositional style. http://www.xs4all.nl/~gaud/biobak/p/penderek.htm Gaudeamus Foundation: Krzysztof Penderecki Includes biography and critique. http://www.usc.edu/dept/polish_music/composer/penderecki.html Polish Music Center Sites: Krzysztof Penderecki Biography, list of works, and links. http://www.symphonicdances.co.uk/penderecki/ Simon Smith: Krzysztof Penderecki (1933- ) Works, news, recordings, publications, and links.