ENERGETIC DISASSEMBLY

It isn't quite true that technicality was absent from thrash prior to Watchtower bringing out this debut - Metallica were taking things in a more intricate direction on Ride the Lightning, after all - but Watchtower would, on Energetic Disassembly, push technicality to the fore in a way which no other band had dared to do. Before this, "progressive metal" mostly involved metal bands' nods to the prog bands of the past, like Iron Maiden's epics, but here Watchtower chart a course for innovative and complex musical experimentation in a metal context which demonstrated that the tougher, heavier, more extreme metal subgenres of metal could get artsy and clever too. Blazing a trail which would subsequently be taken by the likes of Cynic or Atheist, Energetic Disassembly is a brilliant example of how genres can be blended without blunting the appeal of either of them.