1 1887-1968 1910- 1910-2001 1912-1992 1918-2005 1919-2009 1925-2008 1925-2016 1926- 1926-1987 1930- 1965- 2 20thcentury 24 709 780 9 acting actors africanamericans aleatorymusic american aristotle art artandmusic artists'books arts attorneyandclient biography blacks boulez civilrightsworkers comicbooks composers composition(music) correspondence crimesagainst criticismandinterpretationcage cunningham duchamp electronicmusic etc exhibitions experimentalmethods experimentaltheater feldman fiction friendsandassociatesduchamp graves grygar influencecage interviews investigation ironfist(fictitiouscharacter) jasper john johns kukluxklan(1915-) lois long luke luke(fictitiouscharacter) malefriendship maliciousaccusation marcel mark merce milan modern morris morton motionpictureactorsandactresses mudinart murder musiciansasartists musicinart n6494 nicolas penn(fictitiouscharacter) pierre rauschenberg robert silenceinart silenceinmusic spolin strips superheroes teenagegirls tobey trials(murder) unitedstates viola