In many ways, Opeth’s Blackwater Park can be considered as their answer to The Beatles’ Revolver, both uncompromising and experimental, but equally commercially viable and unfuckwithable masterpieces. Twenty-five years on, Blackwater Park remains a breath-taking piece of work, dense with extraordinary melodic moments, spine-tingling atmospherics and agile but crushing heaviness. It is also arguably still the most cherished album in the Swedish metallers illustrious catalogue as a rising progressive influence kicked open prog’s ornate doors, fed death metal through the cosmic kaleidoscope and introduced a generation of music nerds to a world of limitless musical possibilities.