Prologue B (プロローグ B) is an Event Track in Xenoblade Chronicles, composed and arranged by Yoko Shimomura, with additional arrangement by Tsutomu Narita. It is track 3 of disc 1 from the Xenoblade Original Soundtrack. It is a heightened version of Prologue A and plays during the cutscenes immediately following the tutorial sequence at the Battle of Sword Valley as Dunban makes a final charge against the Mechon, followed by the camera panning out from the Bionis and Mechonis leading into the title call. Notably, it plays at one other point, much later in the game, when Shulk is revived after Dickson's treachery following the events at the Mechonis Core, takes up the Replica Monado, and slays some of the Telethia threatening his companions, thus saving the party and prompting Dickson to have t