Languages: German, Spanish, English, Italian, Swedish, Hungarian
His teachers included also Prof. Monica Pick-Hieronimi, Prof. Kerstin Meyer, Maestro Ubaldo Gardini and Maestro Bruno Rigacci.
The cooperation with Birgit Nilsson, Giuseppe Giaccomini, Ingvar Wixell and Gösta Winberg furthered his vocal development.
He was Finalist in the "Concorso Internazionale Voci Verdiane Busseto" and the "Luciano Pavarotti Vocal Competition Modena".
After completion of opera studies at the Stockholm University College of Opera, he had his first engagement at the Royal Dramatical Theatre, where he could make his acting talent under the direction of Ingmar Bergman.
There was an international singing career to their stations, the Royal Theater Dramatical Stockholm, the Royal Opera Copenhagen, the National Opera of Taipei, the Latvian National Opera in Riga, the Teatro Colon de Buenos Aires and the Bavarian National Theater included.
So he had the opportunity to work with renowned conductors such as Zubin Mehta, Carlo Franci, Bruno Rigocci, Sixten Ehrlingand Siegfried Köhler.By he participated in productions by directors such as August Everding, Folke Abinius, Didier of Orlovsky and Oscar Figueroa, he gained significant experience.
A special, personal relationship has Mario Diaz to late Romanticism and Verismo.
Therefore, he has specialized in the past five years on the spinto-dramatic opera specialist. Among his favorite roles that earned him outstanding successes, including Luigi ("Il Tabarro"), Don José ("Carmen"), Cavaradossi ("Tosca"), Moritz ("Adriana Lecouvreur"), Don Carlo, Otello and Andrea Chénier.
The artistic genius of Mario Diaz does not exhaust itself in the operatic repertoire, but also proved itself in song interpretation. Through his resume, that his South American origins and its longstanding ties with Sweden, he is particularly familiar with the song culture of these countries.
He devoted himself not only the German, French and Italian composers, but proved especially its strength in Spanish Impressionism in Latin American songwriters such as Carlos Guastavino and Astor Piazzolla, as well as songs from the Scandinavian tradition. Especially with works by Grieg and Sibelius, he has emerged.
Since October 2009, Mario Diaz works as a professor at the University Mozarteum, also since 2012 he leads Canta Singing Studio in Salzburg and since 2014 in Moscow focusing Belcanto talented youngsters on their way to the opera world.