Later, he studied with Vinko Globokar at the Fiesole Music School and with William Cramer, teacher of the Florida State University. He continued this experience with stages in Chicago and Masterclasses in Italy, Switzerland and Germany, where he studied with, among others, Arnold Jacobs, Edward Kleinhammer, Charles Vernon, Frank Crisafulli, Rex Martin, Abbie Conant and Joseph Alessi.
He won auditions (for temporary positions) at the Orchestra Sinfonica dell’Emilia Romagna “A. Toscanini”, Orchestra dell’Accademia Nazionale di Santa Cecilia, the European Community Youth Orchestra (1988); and competitions (for permanent positions) at the Teatro San Carlo in Napoli (where he was 1st Trombone from February 1987 to April 1988), the Teatro dell’Opera in Roma, the Teatro alla Scala in Milan, the Teatro Comunale di Firenze “Maggio Musicale Fiorentino” (where he was First Trombone for more than 9 years), the Bavarian State Opera (where he was First Solo Trombone for 6 years) and the Orchestra dell’Accademia Nazionale di Santa Cecilia in Roma, where he has been First Trombone since June 2003.
He played, as First Trombone, in many Orchestras, such as RAI (Italian Braodcasting) Orchestra of Napoli and RAI Orchestra of Roma, the Accademia Nazionale di Santa Cecilia in Rome, the Teatro alla Scala in Milan, the Leipzig Broadcasting Orchestra (Mittel Deutscher Rundfunk Sinfonie-Orchester), the “Solisti Veneti”, the “Mahler Chamber Orchestra”, the “Orchestra Filarmonica della Scala”, the Israel Philharmonic Orchestra, the Filarmonica Toscanini, the Orchestra de la Comunidad Valenciana (Bass Trumpet in the Wagner’s Ring with Z. Mehta in the 2009), the Orchestra Mozart di Bologna, the Münchner Philharmoniker, playing with conductor such as C. Abbado, L. Maazel, M. W. Chung, C. M. Giulini, Z. Mehta, G. Pretre, R. Muti, S. Bychkov, C. Scimone, W. Sawallisch, G. Sinopoli, A. Pappano, E. P. Salonen, V. Gergiev, M. Tilson-Thomas, K. Petrenko.
Andrea Conti performed several times the Nino Rota Trombone Concerto: with the Orchestra Sinfonica dell’Emilia Romagna “Arturo Toscanini” conducted by Julian Kovatchev, with the Orchestra Sinfonica Abruzzese conducted by Marco Zuccarini, with the Orchestra dell’Accademia Nazionale di Santa Cecilia conducted by Myung-Whun Chung, with the Orchestra Sinfonica di Sanremo conducted by Marc Tardue, with the Orquestra Nacional do Porto conducted by Marzio Conti. In the 2002 he recorded this piece for the English label Chandos, with I Virtuosi Italiani conducted by Marzio Conti.
As a teacher, he held the Trombone and Tuba Class at the Scuola di Musica “G. Verdi” in Prato for 9 years, giving Masterclass in many Conservatories, Brass Festivals and Music Schools in Italy and Switzerland. From 1997 to 2003 he was teacher of Trombone, Tuba, Brass Chamber Music, Brass Orchestral Class at the “Arturo Toscanini Foundation” Youth Orchestra. Since April 2008 he has been Trombone teacher in the University School of Music of the Conservatorio della Svizzera Italiana in Lugano, Switzerland. In 2015 Andrea Conti received, by election, the ITA (International Trombone Association) Neill Humfeld Award for Excellence in Trombone Teaching. He currently teaches Trombone at the Advanced training course at the Santa Cecilia National Academy in Rome.