At the age of 20, he was a member of the National Orchestra of Spain and the European Youth Orchestra, under the baton of Maestro Claudio Abbado.

In 2000 he created the Orquesta y Coro Filarmonía, of which he is currently Artistic and Musical Director, an institution that has been consolidating as a benchmark for classical music in Spain and stands out for having its own season at the Auditorio Nacional de Música in Madrid. During its nine years of broadcasting, the Orquesta Filarmonía and Pascual Osa performed the TVE program El Conciertazo, conducted by Fernando Argenta.

He has been Professor of Orchestra Conducting at the Royal Conservatory of Music in Madrid and is currently Director and Professor of the Master in Orchestra Conducting at the International University of La Rioja, UNIR.

He has conducted throughout Spain and abroad: in Hungary, Bulgaria, Romania, United Kingdom, Italy, Peru, Ecuador, Mexico, Chile, Poland and the United States. He has conducted important ensembles such as the Orquesta Nacional de España, Orquesta de la Radio Televisión Española, Orquesta Sinfónica de Madrid, London Philharmonic, Orquesta Sinfónica Las Colinas, (Dallas), Orquestra I Promeriggi Musicali de Milán, etc. He has directed opera productions such as Turandot, Otello, La Boheme, Nabucco, Norma, Carmen or La Traviata, among others; and zarzuela: La Rosa del Azafrán, La del Soto del Parral, La del Manojo de Rosas, Doña Francisquita and Luisa Fernanda among others.

He was awarded the “Exemplary Spaniard” prize by the Community of Madrid for his contribution to Spanish Music thanks to his Season at the National Auditorium of Music in Madrid, and received the Cultura Viva Award in the category of ‘Music’ for his contribution to the maintenance and dissemination of Spanish Music. He conducted the concert offered at the UN headquarters in New York for the commemoration of the 10th anniversary of the September 11 attacks.

Since 2021, he has been living between Munich and Madrid.