Carlo Onori began playing the violoncello at the age of six at the G.B.Pergolesi Conservatory of Fermo. While there he was awarded the "Pagella d'Oro", given in recognition of being the most outstanding student. He went on to graduate from the G. Rossini Conservatory of Pesaro where he studied with Professor Walter di Stefano.
He has participated in Master Classes with such artists as Radu Aldulescu of the Camerata Lysy, Antonio Janigro, Mario Brunello, Konstantin Bogino, and the Trio of Trieste at the Chigiana Academy. At the age of 21 he won auditions for the Orchestra del Teatro Comunale di Firenze Competition as well as the Orchestra dell'Accademia Nazionale di Santa Cecilia.
Currently Carlo Onori is the Associate Principal Violoncello of the Orchestra dell'Accademia Nazionale di Santa Cecilia and Principal Violoncello of the Orchestra Barocca di Santa Cecilia. He has collaborated with such chamber musicians as Leonidas Kavakos and Stefano Montanari. Pianists of note with whom he has performed are Alexander Lonquich, Alexandre Tharaud and Ramin Bahrami, with whom he recorded "The Musical Offering" by J.S. Bach. In addition he has performed before the Senate of the Republic, the Chamber of Deputies, and President of the Republic.
Carlo Onori is the Principal and Solo Violoncellist for the Orchestra of the Cappella Ludovicea a Trinità dei Monti in Rome, an orchestra which specializes in sacred music. He also works with the ensemble I Cameristi di Santa Cecilia with which he performs in Italy and abroad.