Nafshi, Recit and other compositions show a turning point in his way of composing, since he pays more attention to the form, which is thought of as a synthesis of a fluid episodic multiplicity.
Through his Pierrot series he was able to reveal a "melodic" component of his music which broadens in the opera Trionfo della notte (1986–87 season at the Teatro Comunale di Bologna), which won the Premio Abbiati as the best composition of the year.
2, for violin and orchestra (Parma, June 20, 1991), proof of the deep relationship existing between the composer and Pier Paolo Pasolini's poetics.
His collaboration with Giovanni Raboni led to the creation of Quare tristis, for soloists, chorus, two instrumental groups, two tubas and live electronics (Biennale di Venezia, 1995).
With the musicians and technicians of the center Guarneri has realized three music work with an intense use of live electronics, premiered and performed in Florence, Ravenna, Torino, Spoleto.