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 is the producer as well as mix/mastering engineer for the YouTube phenomena Dirty Loops. Their debut album was released by David Foster and Verve Records/Universal Music, USA/Japan (May 19, 2014). As of 2019 they are managed by Quincy Jones.
https://en.wikipedia.org/wiki/Simon_Petr%C3%A9n