So, is playing guitar any different in space? Well, there's no need for a guitar strap, but Hadfield says you also need to relearn how to fret: "When you're moving fast on the neck, you often miss the frets. On Earth, you're used to the weight of your arm, which helps you track where your hand's going to go. ... Without gravity, you tend to overshoot the mark."

I'm glad he's practicing so we can be entertained on our mission to Mars.

http://pandawhale.com/post/9734/elon-musk-plan-send-80k-people-to-mars