From the album by the Croatian composer Dubravko Detoni: Jugoslav AvanGarde Music: Graphies I.II.III / Phonomorphia 1.2.3., written between 1967 – 1970 and released in 1970.
Dubravko Detoni (born 1937 in Križevci, Croatia) is a composer, pianist and writer. Although active since the early 1970s he is almost unknown internationally.
He was educated in Zagreb, Sienna, Warsaw and Darmstadt, and studied with John Cage in Paris. He has written more than a hundred musical pieces, theatrical spectacles, multimedia and performance pieces, books of poetry, essays, commentaries, and radio and TV programs.
As the founder and leader of the ensemble, ACEZANTEZ, he has performed around Europe, Asia and America. [source]
Dubravko Detoni – Piano & Tape