Ultimo Cielo is a musical piece commissioned for an amateur orchestra. It differs from a classical commission, the aim of which would have been to enrich an orchestra's repertoire. Ultimo Cielo first and foremost focuses on providing amateurs, irrespective of their level and their commitment, with an opportunity to experience a commissioned composition. The theme of the commission questions the status of the artist and of the amateur in art.

The piece is called Ultimo Cielo, in homage to the Italian painter Pinot Gallizio, who founded the Situationist International after meeting Asger Jorn. The painter's work, his singular life and his unique status (formerly a chemist, he began to paint at the age of 45) lend the theme originality, allowing the composer to dramatise with sensitivity rather than conceptually, the relationship between spontaneity and automatism. The piece is composed for an amateur jazz orchestra (flute, piccolo, oboe, soprano and bass clarinets, alto, tenor and baritone saxophones, trumpets, trombones, horns, tuba, guitar and piano), a quintet (guitar, double bass, clarinet, trumpet, drums) and a vocalist. It consists of five metronomes, the screening of a video of Pinot Gallizio's "Pintura Industriale"