(2000) Cuban Salsa Ensemble, MDYMP. Tregar began his classical training at age four. At sixteen, he was the youngest Berkeley Symphony member and played under Maestro Kent Nagano. Tregar has been continually performing professionally since he was 16. He is musical director of Orquesta la Moderna Tradicion, a Cuban Orquesta dedicated to performing traditional and modern Cuban music including Danzon, Cha Cha Cha and other genres. He is also musical director of The Shams Eire, an Irish trad/rock group. Tregar also has performed for decades with Potaje (Flamenco/Latin ensemble), and Los Cenzontles (Mexican trad and modern music). He worked in New York with Chocolate Armenteros, Patato Valdes, Juan Carlos Formel, and Orquesta Broadway.

Also speaks Spanish.