Fourth issue of Shelter Press' annual publication series »Spectres« (in association with INA GRM), this time themed around ›voice‹. Featuring contributions from/about François J. Bonnet, John Giorno, David Grubbs, Yannick Guédon, Lee Gamble, Sarah Hennies, Haela Ravenna Hunt-Hendrix, Stine Janvin, Joan La Barbara, Youmna Saba, Akira Sakata, Pierre Schaeffer, Peter Szendy and Ghédalia Tazartès.

The book includes an essay about the essence of improvisation by Joan La Barbara, Lee Gamble looking at neural networks and vocal simulation systems, an untitled anecdote from Ghédalia Tazartès (RIP) and Stine Janvin on the necessity of singing, plus much more.

»The voice is everywhere, infiltrating everything, making civilisation, marking out territories with infinite borders, spreading from the farthest reaches to the most intimate spaces. It can be neither reduced nor summarised. And accordingly, when taken as a theme, the voice is inexhaustible, even when seen in the light of its very particular relation with the sonic or the musical, as is the case in most of the texts collected in this volume. There is no point therefore in trying to circumscribe or amalgamate the multiple avatars of the voice. We must rather try to apprehend what the voice can do, to envisage its landscape, its potential effects.«

— Extract from the editors' foreword.