Sinergia (Spanish for Synergy) is a Chilean band that plays experimental rock with influences from alternative metal, a style that themselves define as "birdy metal" by the incorporation of "pajaronas" (birdy) lyrics; which is Chilean slang referring to people that are a bit vague or slow to understand. Sinergia plays with the mixing of a strong rock sound with an electronic base, funk bass lines and special sounds for each song. Its main feature is the combination of very different styles, even within the same song. For example, Jefe has ska segments and alternative metal.