Włodzimierz Kotoński was born in 1925, studied with Piotr Rytel and Tadeusz Szeligowski at the Warszawa Higher School of Music. In 1957-61 he attended the International Courses of New Music in Darmstadt. One of the regular collaborators the Polish Radio Experimental Studio, he also worked at the electronic music studios of Westdeutscher Rundfunk in Cologne (1966-67) and Groupe de Recherchers Musicales ORTF in Paris (1970). In 1970-71 he was in West Berlin as fellow of the Deutscher Akademischer Austauschdienst. Since 1983 he has lectured on composition and directed the Electronic Music Studios at the F. Chopin Academy of Music in Warszawa. Since 1983 he has been professor of this school (retired 1995). Among his numerous pupils there are such composers as Paweł Szymański, Hanna Kulenty, Stanisław Kurpowicz, Tadeusz Wielecki, Edward Sielicki, Jacek Grudzień and Paweł Mykietyn.
Kotoński also lectured at many international institutions. He was the guest lecturer of composition and electroacoustic music in Stockholm (1971), Buffalo (1978), at the University of Southern California in Los Angeles (1982), at the Rubin Academy of Music in Jerusalem (1990), and at the Conservatory in Alkmaar, Sweden (1993). In 1983-89 he served as the president of the Polish Society for Contemporary Music (the Polish branch of ISCM).