In order for warriors Ruby, Weiss, Blake, and Yang to properly train at Beacon Academy and vanquish evil from the world, they need a sufficiently energetic soundtrack. For RWBY, Vol. 2, Jeff Williams composed songs that capture the show's dynamic, fun spirit. The breakneck-paced “Time to Say Goodbye” charges ahead with fiery guitars and driving drums. “Caffeine” is a romping, explosive rock song with magnetic guitar riffs and speedy punk- and rap-influenced vocals about the necessity of coffee before a good fight.