Artist / Song: Avicii – Heart Upon My SleevesTechnique: Fingerpicking, hammer on, pull offsDifficulty: 7MelodyChords: #1 Personally, I like Avicii very much because I think that he managed to combine modern party music, which often only consists of “BumBumBumBum” with “real” instruments. If you were to play some of his songs with a distorted electric…