Chords for 魏如萱 waa wei - 浪費一整天『小混蛋』巡迴演唱會 台北場 Legacy mini@amba 20140804 (). 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.