Playing slowly is good… I jumped right in trying to play way too fast for my own good, and I picked up a lot of bad technique in the process. Hopefully I’ve sorted most of it out by now.
Playing slowly is the whole deal. You just have to be a bit patient. Old McDonald isn’t very inspiring, that’s for sure. Maybe you can just pick a few measures that look reasonable from one of the tunes and play those slowly.
One thing that I found interesting. I was sort of playing (well, I can’t play but trying) through the easier tunes and I found I got very over-dosed on the “melancholy” sound. That would certainly vary from person to person. I liked it alot at first and then I just couldn’t stand it. So actually Old McDonald sounds pretty good to me right now! I really need variety.