tracks b2 composed by Bruno Maderna
tracks a2 composed by François Bayle
tracks a3 composed by John Cage
tracks b1 composed by Luciano Berio
tracks a1 composed by Pierre Schaeffer
Recorded At Studio di Fonologia Musicale di Milano
Tracks A1 and A2 realized at the studios of Groupe de recherches musicales, O.R.T.F. (Paris, France).
Tracks A3 and B2 recorded at Studio di fonologia di Milano della RAI Radiotelevisione italiana (Milano, Italia).

La musica moderna volume 103.
Comes in oversized gatefold cover.