Here are three very interesting LPs, focusing on early electronic works made at the Instituut Voor Psychoacustica En Elektronische Muziek, a studio for electronic music founded in 1963 by the BRT (Belgian Radio and Television) and the State University of Ghent. These recordings feature works composed by Lucien Goethals, Karel Goeyvaerts, Louis De Meester, Peter Beyls and Raoul De Smet
PS: These are my own rips, not the Creel Pone CDrs from a while back...