Well, when I learned the stars spangled banner it took me about 2 weeks, an average of 2 and a half hours a day, sometimes more, sometimes less, and it was pretty frustrating. But I could tell I was getting better, albeit slowly. With chords though, a week and a half later I'm still as clumsy as I was in the beginning. I can read tabs, it's pretty easy, and I memorized most of the chords. But changing chords I'm not gettting any better at, I dont' think I can do it any faster than when I first started out.