Mario Marzi is a winner of nine national and four international competitions. He has performed with prestigious orchestras including The Orchestra Sinfonica RAI di Torino, Accademia naz. di Santa Cecilia, Arena di Verona, Teatro Comunale di Firenze, Teatro alla Fenice di Venezia, Orchestra della Svizzera Italiana and the Caracas Symphony Orchestra.

Mario has worked for twenty years with Teatro alla Scala and with the Filarmonica della Scala under the baton of some of today's leading conductors including R. Muti, C. M. Giulini, G. Prètre, L. Maazel, L. Berio, S. Bychkov, G. Sinopoli, W. Sawallisch, M. W. Chung, G. Dudamel, C. Abbado, R. Chailly and D. Harding.

He often plays with Riccardo Muti and is regularly invited to join Zubin Mehta and the Orchestra del Maggio Musicale Fiorentino on concert tours. He has played at famous national and international festivals such as the Biennale di Venezia, Settembre Musica, La Scala di Milano, Accademia Filarmonica di Roma and the Ravenna Festival. He has also performed in Salzburg, Athens, Madrid, Saint Petersburg and Mexico City. Important venues include Carnegie Hall, New York, The Suntory Hall, Tokyo, The Gewandhaus, Leipzig, The Musikverein, Vienna, The Schauspielhaus, Berlin, The Lacma Museum, Los Angeles, The Grand National Theatre of China, Beijing, The European Parliament, Brussels, The Ciajkovskij Hall, Moscow and The Liceu, Barcelona.

He devoted himself to 20th century repertoire and some of the most important contemporary works for saxophone are dedicated to him. He has recorded for EMI, Edipan, Stradivarius, Agorà, BMG and Sony Classical. His CD of the major saxophone concertos for soloist and orchestra, which he recorded with G. Verdi Symphony Orchestra conducted by H. Schellemberger, was recently released in Italy by Amadeus and is now internationally released on ARTS (München). He is a Rico endorsee.

Mario Marzi teaches saxophone at G. Verdi Conservatory in Milan, gives postgraduate courses and master classes in Oporto, Amsterdam, Lisboa, Frankfurt, Beijing, Wien, London, Washington, Sydney, Denver and Caracas, within the Abreu’s project (El Sistema).

He has been on the jury of many international competitions including The 5th Adolphe Sax International Saxophone Competition, which was held in Dinant in 2010. He is the Italian representative for Gerry Mulligan’s Publisher. Mario also is editor of several educational scores for Carisch.

His book Il Saxofono Zecchini Ed. was published in October 2009.