A Swedish avant-garde metal ensemble with a penchant for pairing elements of jazz, swing, classical, and progressive rock with Marshall stack-powered sonic might, Diablo Swing Orchestra was founded in 2003 -- the group wryly cites a lineage that dates back to the 1500s. Originally conceived as a sextet, the band issued an EP, Borderline Hymns, in 2003, with their first full-length outing, The Butcher's Ballroom, dropping in 2006. A sophomore effort, Sing Along Songs for the Damned & Delirious, arrived in 2009, and they expanded to an eight-piece for 2009's Pandora's Piñata. Pacifisticuffs arrived in 2017, and marked their debut for Finnish metal giant Spinefarm Records. ~ James Christopher Monger