It is the last arrival out of print. Richard Maxfield, an American electronic musician / composer who was also known as a student and instructor of electronic music classes for Nan and John Cage. A collection of rare sound sources from the 1960s released in 2014 by the Dutch Fluxus / art reissue label Slowscan. It's a board that contains a lot of valuable sound sources, but I think the one that catches the eye even if it's called Nan is the precious recording of La Monte Young in 1961. An important document that unravels the history of contemporary music / electronic music. Limited to 185 copies. Highly recommended!