Founded in Italy between 1964 and 1965, the world's first composers collective, Gruppo Di Improvvisazione Nuova Consonanza, sought to unhem the purposefulness of their respective instruments and the primacy of composition in order to open up a space for the emergence of free music and unintentional noise sounds.

The music sways between nearly inaudible whir, clatter and scrape and bubbling blasts of sound. Their overtures to noise, anti-musical operations and compositional experiments on this disc, like their English brethren AMM, completely anticipated a strategic break with the standards of virtuosity.

This work represents the earliest incarnation of Gruppo and features Ennio Morricone, better known for his soundtrack work, Franco Evangelisti, Egisto Macchi, Antonello Neri, Giovanni Piazza and Italian Instabile Orchestra member, Giancarlo Schiaffini. Contains previously unpublished photos and original notes by Franco Evangelisti.