 Stockhausen 's two early Electronic Studies ( especially the second ) had a powerful influence on the subsequent development of electronic music in the 1950s and 1960s , particularly in the work of the Italian Franco Evangelisti and the Poles Andrzej Dobrowolski and Włodzimierz Kotoński ( Skowron 1981 , 39 ) . The influence of his Kontra @-@ Punkte , Zeitmasse and Gruppen may be seen in the work of many composers , including Igor Stravinsky 's Threni ( 1957 – 58 ) and Movements for piano and orchestra ( 1958 – 59 ) and other works up to the Variations : Aldous Huxley In Memoriam ( 1963 – 64 ) , whose rhythms " are likely to have been inspired , at least in part , by certain passages from Stockhausen 's Gruppen " ( Neidhöfer 2005 , 340 ) . Though music of Stockhausen 's generation may seem an unlikely influence , Stravinsky said in a 1957 conversation : 
