Mr Eustache has also taught Classical western flute in the Venezuelan National Youth Symphony's Conservatory, the Children's Orchestra Conservatory; Jazz flute in 1993–95 at the California Institute of the Arts, & more recently 2008, in a renewed connection with his native country, 'Introduction to Music Technology', 'Improvisation for Non-Improvisers' Parts I & II & 'World Music I: Introduction to The Classical Music of North India' courses at the "Instituto Universitario de Estudios Musicales" IUDEM, as well as flute master classes at the FESNOJIV headquarter building in Caracas, Venezuela.