Led Zeppelin's 5th release, "Houses Of The Holy" includes a track that became a requirement to any Zeppelin stage show ... "No Quarter".  A John Paul Jones tour de force, the boys surround his surreal keyboard work with enough minor chords and haunting imagery that should raise the hackles, even if it isn't Halloween!  Close the doors and turn out the lights around 5:20.  I'll be looking for you.