Chords for BY2《Because Of You》Piano Version ~ 电视剧《亲爱的，公主病》插曲 [XWill歌词 | My Little Princess Theme Song] (). Spark is the smartest and most interesting app to learn and enjoy playing guitar. Spark is an all-around app for beginners and advanced players to learn any song with chords or master new skills with hundreds of lessons and games in Spark.