HANS KOLLER FREE SOUND For Marcel Duchamp (Scarce Euro-Jazz 1977 Dutch 9-track LP on MPS, also starring Eddy Marron on Guitar, Juergen Wuchner on Bass & Janus Stefanski on Drums, picture sleeve. Obtained from a former EMI executive in Holland,the sleeve has picked up just a few light scuff marks from storage & the vinyl looks barely played)