From the Crimean War to the Prehistoric era and across the universe to the planet of Dune, we plunge our needles into each and every groove of Iron Maiden’s 1983 metal manifesto, Piece of Mind. Side quests in this congenial confab include tangents and musings about X-Ray Spex, Dag Nasty, The Getup Kids, Warren Zevon, and The Who (not to be confused with Mongolian metal band The Hu). It’s a landmark episode for Arianne, who marks a year since their first appearance on the show and subsequently invokes the State Comptroller Atkins rule for a crucial cut from Piece of Mind.