E.S. Posthumus was an independent music group that produced cinematic style music. Their style is a form of classical that intertwines popular style drum rhythms with orchestral and electronic sounds. Their music is inspired by the Pythagorean philosophy which states that "music is the harmonization of opposites; the conciliation of warring elements". The E.S. is an acronym for "Experimental Sounds" while Posthumus is a Dog Latin word that is meant to represent "all things past". The group was formed in 2000 by brothers Helmut and Franz Vonlichten. Helmut and Franz studied piano with their mother.