Indispensable. In 1969 Ferrari made Music Promenade, one of the key works of tape music, using environmental recordings throughout. He followed it in 1970 with Presque Rien (at the seaside), again using documentary recordings only, but this time, les eventful, more environmental. He returned to the process in 1977 with a night piece that extended the documentary night into One more return in 1989 (with young women) recorded in Tuscany. The whole sequence is on this CD.A classic.