Principal Horn of the Munich Philharmonic Orchestra. At the age of seven, he began his first lessons under the tutelage of his maternal grandfather, Antenor Piñeira, a horn player and teacher. That same year, he joined the symphonic band “Orfeón Nacional de Bomberos de Chile.” In 2000, he began private studies with Maestro Edward Brown. In 2004, Matías began his formal studies with the Institute of Music of the Catholic University of Chile, always under the guidance of Maestro Brown. During that time, he received several scholarships such as the “Beca Jorge Peña-Hen” and “Amigos del Teatro Municipal.” In 2005, he joined the National Youth Symphony Orchestra as a scholarship soloist. In 2006, he won a scholarship and was invited to participate in the Campos do Jordão winter festival in Brazil.

In 2008, at the age of 19, he won the position of Principal Horn of the Symphony Orchestra of Chile, where he remained as a permanent member for the next five years. In 2014, he was part of the Orchestral Academy of the Berlin State Opera, under the baton of Maestro Daniel Barenboim. In 2015, under the tutelage of Ignacio García, he won the position of Principal Horn in the Munich Philharmonic Orchestra, currently conducted by Maestro Lahav Shani.

Since October 2022, he has been a Horn Professor at the Mozarteum University of Salzburg.