In addition to being a member, for several years, of Musici di Roma, he joined, among other musicians: pianists Bruno Canino, Maureen Jones and Tullio Macoggi and conductors Hermann Scherchen, Laszlo Somogji, Bernhard Paumgartner, Lovro von Matacic, Rudolf Kempe, Artur Rodzinsky, Gianandrea Gavazzeni, and Ernest Ansermet.
Roberto Cavalli | Roberto Rossellini | Roberto Carlos | Roberto Durán | Roberto Clemente | Roberto Bolaño | Roberto Faenza | Roberto Calvi | Roberto Matta | Roberto Alagna | Roberto Carlos (singer) | Roberto Mancini | Roberto Carlos (footballer) | Roberto Baggio | Roberto Moreno | Roberto Longhi | Roberto Formigoni | Roberto Di Matteo | Roberto De Vicenzo | Roberto D'Alimonte | Roberto Benigni | :it:Roberto D'Alimonte | Agustín Roberto Radrizzani | Roberto Valera | Roberto Stagno | Roberto Salmeron | Roberto Rodríguez | Roberto Martínez | Roberto Díaz Herrera | Roberto Cassinelli |
Violins: Salvatore Accardo, Federico Agostini, Felix Ayo, Arnaldo Apostoli, Pina Carmirelli, Italo Colandrea, Anna Maria Cotogni, Walter Gallozzi, Roberto Michelucci, Mariana Sirbu, Franco Tamponi, Luciano Vicari