I've begun taking my first keyboarding classes in college, having never had any piano experience whatsoever in the past. I can play melodies one-handed with no problem whatsoever, I fly through them. Where I'm having a lot of difficulty, and I can only assume it's a common trouble, is getting my hands to work together. Does anybody have any tips on how I can train myself to do that? I can do basic drone stuff with a repeated chord, but when it comes to even the simplest rhythm on the left hand, it's like my brain shuts down.