In this space, the audience is invited to enter the pool of cold water that occupies nearly the entire room, placed amid the interference of green and blue lights. In CC4/Nocagions (1973), wall projections reveal the origin of the title of the work: a double reference to John Cage (1912-1992), pioneer of aleatoric music, and to his book Notations, in which a collection of his music manuscripts are gathered. In these images we see mancoquilagens traced on the white cover of the book along with pocket knives. On the soundtrack, it is possible to hear a piece also by Cage, oscillating in terms of intensity and volume. The project of Hélio Oiticica and Neville d’Almeida is dedicated to Brazilian concrete poets Augusto and Haroldo de Campos.