Chords for Top 7 Magnificent Guitar Jam In History -Govan,Gilbert,Petrucci,Vai,Meola,Howe,Satriani,Schenker (). 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.