Bryn Mawr, PA: Theodore Presser, 1958. First American Edition, and first English language edition, originally published in Austria in 1955 by Universal Edition.
First issue of an eight issue journal by composers and theorists Karlheinz Stockhausen and Herbert Eimert. Each issue focused on a single topic in contemporary music, this one focusing on the then-new field of electronic music.
Very Good plus in wrappers.