In 2007, Grases founded Amazonia Vocal Ensemble part of Amazonia Music Corp. (a 501(c)3 non-profit organization), which is one of the first vocal performing arts ensembles in the United States dedicated primarily to the performance and preservation of Latin American choral music.
In the fall of 2009, Grases served as an associate professor at The California State University in Los Angeles , teaching both undergraduate and graduate courses, and directing the university ensembles.