Cyril (variously Cyriel) Havermans has been a much maligned figure and needs to be rehabilitated, I have just listened to his 'Mindwave' LP on UK MGM circa 1974, and its a great LP. It has a great Hipgnosis cover too.
He seems elusive, I have made enquiries. the best I have come up with is that he is a builder, and may have played with Kaz Lux and Rudy De Queljou at a recent gig.
I bet many of you don't know what the fuck I'm on about.