Cronian, a progressive metal band from Norway and Sweden, was formed in 2004 by Øystein Brun and Andreas Hedlund. Initially known as Ion, the duo began collaborating with a shared vision for their music. In 2005, under the name Cronian, they finalized their musical direction and released their debut album Terra in 2006, which was mastered by Dan Swanö and published by Century Media Records. The following year, Cronian continued recording for their second studio album, Enterprise, which was released in 2008 under Indie Recordings. In 2013, the group released their third album, Erathems.
