Simon Petrén (born 14 March 1986) is a Swedish music producer, songwriter, mix engineer and mastering engineer. He holds a Diploma in Piano Music Performance at the Royal Schools of Music in London and a Bachelor degree in Film Scoring and Music Production at the Royal College of Music in Stockholm. Simon Petrén lives in Seoul, South Korea, consulting for different entertainment companies as songwriter/producer/mix&mastering engineer. Simon Petrén is the producer as well as mix/mastering engineer for the YouTube phenomena Dirty Loops.
https://en.wikipedia.org/wiki/Simon_Petr%C3%A9n