"Violin and double bass music." . . . . . . . . . . . "Krzysztof Penderecki is one of the world's great contemporary composers and a Polish classical music icon. His 80th birthday in November 2013 occasioned an extraordinary gathering of the world's most significant musicians and his most important interpreters. Companions and long-time friends of the composer presented their homage to Penderecki with some of his most famous works being performed: Threnody to the Victims of Hiroshima, the Duo Concertante, the Concerto Grosso No. 1 and others." . . . . . . . . . . "Interviews" . "A tribute to Krzysztof Penderecki : marking the composer's 80th birthday" . . . . . . . . "Filmed interviews" . . . . . . . . . "Filmed performances" . . "ACCENTUS Music (Firm)," . . "String orchestra music." . . "Poland." . . "Warszawski Chór Chłopięcy," . . . . "Cellos (3) with orchestra." . . "Composers." . . "Choruses, Sacred (Mixed voices) with orchestra." . . "Teatr Wielki w Warszawie. Chór," . . "Telewizja Polska," . . "Concertos (Cellos (3))" . . "Sinfonia Varsovia," . . "Composers Poland Interviews." . . "Zweites Deutsches Fernsehen," . . "Filharmonia Narodowa (Warsaw, Poland). Chór," . .