Machine Head are streaming another new song from their forthcoming effort Bloodstone & Diamonds. The song “Night Of Long Knives” has received the audio visualizer treatment with the above video posted to the band’s YouTube channel. Pre-ordering the album affords you an instant download of the track. Bloodstone & Diamonds hits stores next week on November 10th through Nuclear Blast Entertainment.

There is some blood in the video and imagery that might be misunderstood by those that aren’t metal fans so I’m issuing an NSFW warning for those of you who might choose to give this a listen/view at work.