[3]: 141  During this time and after, Becerra-Schmidt was a teacher in the Chilean National Conservatory, he held this position until 1971 when he became a Cultural attaché between Chile and Bonn.

Some of his pupils are among the most important composers of Chile, these include Luis Advis, Sergio Ortega, Fernando García and Cirilo Vila.

[4] Becerra was a prolific Chilean composer, his catalogue includes hundreds of compositions that goes from traditional to avant-garde to Aleatoric music, and from popular songs to large-scale cantatas, symphonies and oratorios.

[1] However, a large part of his musical career was politically involved, some of his cantatas included verses that were related to the Pre-Columbian era and Spanish colonization, Becerra-Schmidt's student Fernando García also wrote works based around political figures.

[3]: 151 [note 1] Highlights among his output are the cantatas La Araucana and Lord Cochrane de Chile, the Macchu Picchu oratorio on texts by Pablo Neruda, the Concerto for Flute and Strings, and a most recent Harp Concerto from 2006.