In all honesty, my piano has been severely neglected without the obligation to practice during the past 2 years. I'd love to be able to sit down at a piano and freeze everyone in a room (who wouldn't?), but I have a big problem with limb/hand independence.
Essentially, I can play swift arpeggios and all kinds of fancy stuff with my right hand alone. The same is true of my left hand, but with a slight drop in speed and accuracy. If you give me a one-stave track, I can have it down in no time. Have me play hands together, and we've got a massive, and I mean massive problem.
I have no hand independence at all. I can't play quarter notes on my left hand while playing an eighth note melody with occasional rests on my right hand - whatever my right hand is doing, my left hand has to be relevant to - and the unfortunate part is, a good 80% of music (100% of the level of songs I'd like to learn) doesn't give me that luxury.
How can I improve this skill quickly and/or efficiently? I'd love to get back up on my feet again and learn new pieces, but this is inhibiting me terribly. Thanks!