is one of the best known Fluxus and radio artist from the Netherlands. He worked in such various fields as radio, television, film, reader-written magazines etc. Appointed as Fluxus Chairman of Northern Europe by George Maciunas he organized and participated in numerous Festivals, concerts and exhibitions. One of de Ridder’s most popular works were the radio experiments on Netherlands national radio demanding listener participation.
 
Kunstradio broadcasts:
03. 08. 1989: Radiokunst aus Holland - Teil 1
20. 02. 1992: software without hardware
20. 01. 2013: Art’s Birthday review