Hans Rudolf Zeller (1934-2019) is best-known for being a music theorist, essayist and writer on
contemporary music. His essays on
Dieter Schnebel, Iannis Xenakis, microtonality etc., often published in the German journal "Musik-Konzepte", are deemed being among the best ever written on new music. Apart from that, he has since the 1960s maintained his own artistic work, most of which has not been published or only seen the light of day in private micro-editions. Zeller's work often involves combining multiple dimensions (texts, vocals, visual projections) into one cinematological literature.