Chords for 盧廣仲 Crowd Lu 【幾分之幾 You Complete Me】 Official Music Video （花甲大人轉男孩電影主題曲） (). 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.