Challenging song, I think Masterclass and Intermediate are the wrong way around this week :P I got 78.5% on my first attempt of Back in Black, and this is my result of *hours* in riff repeater for this song. That said felt like I'm learning a lot from it (while in RR), I'm using my pinky more, getting better at chords and thinking more on finger placement to hit upcoming notes without moving too much. I will keep trying http://i.imgur.com/UQc0LVe.jpg Also I bought a bass recently, so here's my debut: http://i.imgur.com/GqbLchd.jpg