needs additional citations for verification. Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (December 2008) Dark Tranquillity Dark Tranquillity playing live at Summer Breeze Open Air 2007, with former bassist Michael Niklasson on the left and the singer Mikael Stanne on the right Background information Origin Billdal, Sweden Genres Melodic death metal Years active 1989–present Labels Century Media, Osmose, Spinefarm Associated acts In Flames, HammerFall, All Ends, Soilwork, Dimension Zero, Theatre of Tragedy, Solution .45, Lucyfire Website www.darktranquillity.com Members (see below) Dark Tranquillity is a Swedish melodic death metal band from Gothenburg. They are one of the longest-standing bands from the original Gothenburg metal scene, and are one of the most integral pioneers of the melodic death metal genre of music. Since its formation they did not change their original sound and still have kept their music as an original Gothenburg metal scene, however their first album Skydancer leans towards a more death metal sound than melodic death metal.[dubious – discuss].