Myrin began songwriting at an early age. Myrin later moved to London, where he became active with Hillsong London and co-wrote several songs that were featured on various albums by Hillsong Music. In June 2012 Myrin released his first single, "The Day of the Battle", which has been certified gold in Germany.
Myrin later co-wrote the song "10,000 Reasons (Bless the Lord)" with Matt Redman (who performed the song).
Grammy Award for Best Contemporary Christian Music Song (2013, won for "10,000 Reasons (Bless the Lord)", with Matt Redman) Grammy Award for Best Gospel Performance (2013, won for "10,000 Reasons (Bless the Lord)", with Matt Redman) Dove Award for Contemporary Gospel/Urban Song of the Year (2014, nominee for "Our God", with Micah Stampley, Matt Redman, Jesse Reeves, Chris Tomlin).
Since then Myrin has written songs with various musicians such as members of Supergrass, Peter Bjorn and John, and has appeared in the 2002 music video for the Sophie Ellis-Bextor song "Get Over You".
