Matters are further complicated by the fact that each minstrel would add his personal interpretation to a piece, and that recorded (i.e. written) versions may differ depending on who did the transcribing, and where. It is on this that Corvus Corax's interpretation hinges: medieval popular music was played more from the heart than the brain, and despite making use of scholarship to give them a grounding, Corvus Corax attempts to maintain the spirited, free manner in which the minstrels themselves would have played the music.