Era mixes Gregorian chants and occasionally world music with contemporary electronic arrangements. It is reminiscent of New Age music projects such as Enigma, Gregorian and Deep Forest. Era lyrics are written in Pseudo-Latin, as well as in English. Some of them are based on beliefs of the XIII century French Christian sect, the Cathars.

Era's live shows and music videos often feature artists dressed in medieval or traditional clothes and armour. Most usually, actors Pierre Bouisierie and Irene Bustamante perform at Era shows.

“As a rule, I try to avoid copying musical styles which are imposed by epochs and cultures; I am always on the lookout for strong emotions; the sort that accompany an epic film. In fact, I am writing music for a film which has not yet been made!” says Eric Levi.