Like others have said, definitely just start playing what you used to play and enjoyed. Whether it be music or athletics, muscle memory is an amazing thing...it comes back very quickly when compared to how long it took to develop the original skill.

If you start playing something that used to flow for you and it just won't come, move onto something else and don't get frustrated. Come back later...eventually it will all come back.

But just like when you've been out of the gym for a long period, you want to ease back into things to build your stamina back up and not hurt yourself.