Can machines play your favorite tune? If you program them to, they can. Check the video from TECHNICally Possible of their Lego Mindstorms EV3 robot project. They have built a controller that actually does a good job in playing along to Little Talks (Of Monsters And Men) on the guitar. Sweet engineering job!
YouTube: Little Talks Guitar Cover by Lego Mindstorms EV3
Photo credit: TECHNICally Possible