 Opeth 's distinct sound mixes death metal with progressive rock . Steve Huey of Allmusic refers to Opeth 's " epic , progressive death metal style . " Ryan Ogle of Blabbermouth described Opeth 's sound as incorporating " the likes of folk , funk , blues , ' 70s rock , goth and a laundry list of other sonic oddities into their trademark progressive death style . " In his review of Opeth 's 2001 album Blackwater Park , Allmusic 's Eduardo Rivadavia wrote , " Tracks start and finish in seemingly arbitrary fashion , usually traversing ample musical terrain , including acoustic guitar and solo piano passages , ambient soundscapes , stoner rock grooves , and Eastern @-@ tinged melodies — any of which are subject to savage punctuations of death metal fury at any given moment . " Åkerfeldt commented on the diversity of Opeth 's music : 
