Prize-winner at some major international competitions, such as the Parkhouse in London, the International Chamber Music competition in Paris, and the G.B.Viotti Competition in Vercelli, he was invited to New York by Isaac Stern to participate as cellist into a chamber music workshop in the prestigious Carnegie Hall. In this same venue, he had the opportunity to attend a series of lessons given by among the most prominent concert artists on the international scene, Isaac Stern himself, Janos Starker, members of the La Salle Quartet, and the Beaux Arts Trio.
Pietro Bosna is now first cello of the Solisti Filarmonici Italiani, and with this ensemble he performed in the best international halls: from the Musikverein in Wien to the Wigmore Hall in London, from the Teatro Colon in Buenos Aires to the Concertgebouw in Amsterdam.
In June 2001 he joined a tour organized within the "Italy in Japan" festival, where he performed mainly as a soloist in the most important halls in Japan, like the Tokio Opera City Hall, the Tokio Suntory Hall, the Izumi Hall in Osaka and the Kitara Concert Hall in Sapporo.
Among the founders and members of the "L'Arte dell'Arco" ensemble of period instruments, P. Bosna carries on with this group an important international concert activity, and is involved in various record projects. Among these, he is especially committed with Deutsche Harmonia Mundi; with them, he already published three works together with the harpsichordist, conductor and scholar of ancient music, Christopher Hogwood.
Recently, he performed the Beethoven Triple Concert in Vicenza, the Martinu Triple concert under the direction of C. Hogwood, and the cello concert of C.P.E. Bach directed by Gustav Leonardt.
P. Bosna has recorded disks for Radio France, Radio Swisse Romande, RAI, BBC, as well as for DHM, EMI, DENON, DYNAMIC, BONGIOVANNI, NUOVA ERA, TACTUS, PAVANE, ASTREE, CHANDOS, STRADIVARIUS.
Finally, he has been invited to perform as first cello in important Italian orchestras, and, among these, the "Orchestra del Teatro Regio" in Turin, the "Orchestra A. Toscanini" in Parma, and the "Orchestra del Carlo Felice" in Genoa.