Carlos Sandoval was born in Mexico city in 1956. He now holds a dual Mexican-German passport/nationality. Having abandoned his studies at Escuela Nacional de Música UNAM 1976-79 (classical guitar and composition), Sandoval went on to study composition, analysis and theory, privately, with Julio Estrada (1985–90). His first German project was "Mextoys". This piece constituted a breakthrough in Sandoval's work: it was his first true "phenomenological" work, his first full multimedia piece and his first work joining video and music into a single conceptual and constructive layer. This point marked Sandoval's departure from traditional score writing and deterministic thinking, towards developing either an experience-oriented cognitive approach to music and a cognitive Piagetian approach to animism towards music and life in general, within concepts like "Lifework", "Empathy and Subjectivity", "Evidence", "Intuition", "Intentionality of consciousness" and, last but not least, Techno-ethics.