Ah, where would we be without noise? From Ayler's free jazz to industrial and electronica, I've always loved the way sound can be processed and mutated - 'just noise' or the music of the spheres.
This book provides a very interesting historical overview of noise music, taking in such wayward individuals as the Futurists and the denizens of the industrial and the Japanoise scenes, and subjects that history to a philosophical reading based on the works of such thinkers as Adorno, Deleuze and Bataille. (Bataille, it seems to me, as the patron saint of transgression, is particularly well suited to this task).
To paraphrase Potter Stewart's famous comment about pornography, I may not be able to define 'noise' but I know it when I hear it - it's a broad old church, noise music, and Hegarty does a good job of covering the waterfront - and it's hard not to feel fond of a book that defines Yes as Hegelian and King Crimson as Bataillean.
Paul Hegarty, as well as lecturing and writing on a broad range of cultural subjects, is engaged in a practical sense in the issues he discusses here , through running the excellent experimental label dotdotdot music and playing in such noise bands as Safe.