"Mariachitlán is expertly colored, intricately layered and sometimes delightfully raucous."

"A composer who has revolutionized classical music."

"Silencio en Juárez is masterfully written chamber music."

“Contreras blends classical contemporary music with Mexican popular music, using clear ideas and extremely defined emotions.”

"Ángel Mestizo is a rhythmically rich and colorfully Mexican harp concerto."

“Contreras follows the steps of Moncayo and Revueltas"