In the year 2000, Oscar began to take summer workshops and master classes in different educational institutions such as McGill Conservatory of Music in Montreal Canada, with instructor Pierre Janh, Juilliard School of Music with instructor Daniel Druckman, Christopher S. Lamb, and Roland Kohloff, musician with the New York Philharmonic Orchestra.

In 2000 he becomes part of the percussion section with the Queretaro State Philharmonic Orchestra, and in 2002 is promoted to Timpanist in the same orchestra.

In 2005, Oscar was awarded a state grant by the State Circuit of Culture and Arts which he used to sponsor Marimba concerts throughout the state of Queretaro. His enthusiasm and passion for jazz, led him to form "The Small Band" in February of 2006 where he performs on the vibraphone. The Small Band has performed in many important cultural festivals in the state of Queretaro, as well as in other status throughout Mexico. In 2006, Oscar received a state grant through the Artistic Production Support Program of the Cultural and Artistic Institute of Queretaro, with which he creates a series of arrangements of Mexican music, and supports Mexican composers by offering a series of marimba concerts featuring great Mexican composers, who have enriched Mexican culture, and left a powerful musical legacy.