“Source: Music of the Avant Garde, 1966-1973 was a radical form of new music entrepreneurship that defined experimental publishing attitudes of the the 1960s. I well recall discovering it in the stacks as a graduate student at the university library at Colorado State, flipping the pages and sensing that you could leap off the edge of the known musical world. This was not a journal that provided information or mere perspectives on new music: it showed you the music itself. It brought you into direct contact with the excitement, provocation, beauty, audacity, ingenuity, and insight of the leading experimental musicians of the day. You might be offended, intrigued, inspired, amused, baffled, but the point was that you were right in there, seeing what was going on and deciding for yourself what you wanted to make out of it. The anthology was edited by Larry Austin, the most active editor…