Press release:

COLLEZIONE DEL SILENZIO is a series of 26 cassette tapes by 26 italian acts edited by SILENTES TAPESTRY. Each tape is associated with a letter of the alphabet, each letter is associated with an artist, each letter gives birth to an unwanted word. The music is the artist's personal vision of silence. Each tape is hand numbered and limited to 100 copies.

Reviews:

Andrea Marutti is also something of a legend from the experimental / electronic music from Italy, whose work is mainly to be found in 'ambient' and 'drone', but he dabbles in various aspects of that. So it can be either softly humming or be more upfront. For "Z" he chooses both. On the first side we find something, also based, it seems, around a loop of some kind that swirls around, captured in a system of sustaining feedback sampling machines. A sort of powerful drone music and the b-side is filled with a low end rumble of sonic debris, gently yet dark flowing about. Both sides are total opposites of eachother, but both are equally good.
Frans de Waard, Vital Weekly, October 2010