There isn't probably a single fan of Italian Progressive Rock in the world that has never heard of Pholas Dactylus and their only opus (not just a simple 'record', in fact) "Concerto delle menti" (Concert of the minds), originally published in 1973. Pholas Dactylus have left, with Concerto delle Menti, a unique example of avantgarde prog containing only spoken lyrics that can be appealing to the most adventurous listeners even because the musical background is intense and mesmerising; the album contains a long suite divided onto the two sides of the record with no breaks, declaims back of apocalyptic feeling with his hypnotic voice, instrumental parts vary between hard progressive to modern electric jazz to minimalism and psychedelia.

The first representation of Concerto delle Menti came in the winter of 1972, in Cornate d'Adda. The group had a very good live activity, supporting the german group Amon Duul II and even playing in some open air festivals.