ダーク・トランキュリティ
In Dark Tranquillity, he was one of only two members (the other being drummer Anders Jivarp) to maintain his musical role, unlike the other members who have or had switched. He also wrote some of the lyrics for the first three and recent two Dark Tranquillity albums (Lead singer Mikael Stanne wrote all of Dark Tranquillity's lyrics from "Projector" through "Fiction") and In Flames' album "The Jester Race", and continued to translate In Flames vocalist Anders Fridén's lyrics from Swedish to English for the next few albums while Anders worked to become more proficient in English. Although he quit Dark Tranquillity in 2016, it wasn't announced until 22 March 2020.