Mateus Dela Fonte played as invited guest at many festivals, for example 8. International Guitar Festival Balatonfüred (Hungary), 34. Aschaffenburger Gitarrentage (Germany) and 42. Sommersprossen Festival Rottweil (Germany).

Dela Fonte performs in varied CHAMBER MUSIC formations, for example as a duo (Flute and Guitar, Guitar and Voice) and as a trio (Flute, Guitar, Cello). In addition he has appeared as a soloist with a variety of German, Brazilian and Spanish orchestras, including the Württembergische Philharmonie Reutlingen.

In Aschaffenburg at the 2nd International Competition for CHAMBER MUSIC with Guitar, together with Poetrio Brasilis, he received both the second prize (no first prize was awarded) and the audience award.