An almanach packed with essays and writings of such different sources like early modern music pioneers Russolo, Varèse, and Cage next to DJ Spooky and Kim Cascone, the book traces back many cross references in all strains of the musical avant-garde be it experimental, minimal, improvised, electronic or from the DJ culture. A must on every book shelf of the ones addicted to a new audio culture conceived as “a discourse, a loose collection of terms, concepts, and statements gathered from across the cultural field. The discourse not only challenges aesthetic distincitions between ‘high art’ and ‘popular culture’, it also flattens traditional hierachies between ‘high’ and ‘low’ ventures for publishing.” There is a very good review here, that says everything.