Yesterworlds

The 2009 release of Yesterworlds: The Early Demos commemorates the 20th anniversary of Dark Tranquillity's impressive career (18th if you discount the first two, when they went by the rather comical moniker of Septic Broiler!), and their almost incomparably consistent body of work, not only in terms of quality but also in their largely unwavering commitment to melodic death metal.