seen this on second-hand shelves for decades but was moved to pick it up only recently... out of a mix of curiosity and solidarity ("New Music"... yes the concept did in fact exist in common parlance, people didn't in fact believe that "music has always been about recycling", they thought it could and would and was going into uncharted territory in a multitude of directions)... a mine of information this (obscure labels, cassette-only releases) as well as an attempt at aesthetic map-making... mandatory bedside reading for D. Lopatin, S. Hauschildt, J. Elliott, M.McGuire and whoever Crystal Vibrations is, surely