 Stockhausen wrote 370 individual works . He often departs radically from musical tradition and his work is influenced by Olivier Messiaen , Edgard Varèse , and Anton Webern , as well as by film ( Stockhausen 1996b ) and by painters such as Piet Mondrian ( Stockhausen 1996a , 94 ; Stockhausen Texte , 3 : 92 – 93 ; Toop 1998 ) and Paul Klee ( Maconie 2005 , 187 ) . 
