Listen to Batman Arkham Knight - Inner Demon (Epic Orchestral Version) online. Batman Arkham Knight - Inner Demon (Epic Orchestral Version) is an Instrumental language song and is sung by AYDUmusic. Batman Arkham Knight - Inner Demon (Epic Orchestral Version), from the album BATMAN: Arkham Symphony (Epic Mashup), was released in the year 2025. The duration of the song is 3:18. Download Instrumental songs online from JioSaavn.