Blue Spark Blue Spark Blue Spark’s tracks 19. Ceramic Heart - Accel World OST by Blue Spark published on 2016-04-28T23:48:02Z Different Heaven & EH!DE - My Heart - -Dubstep F- by Blue Spark published on 2016-04-28T23:40:32Z [OST] [ANIME] Accel World - ByeBye [Extended] by Blue Spark published on 2016-04-28T23:40:29Z