Since there are quite a few more Mudcatters now, and I've just started using Open-G tuning, I thought I'd bring back this old thread to see if there are any new ideas in re Frank's original question, "How do you go about figuring out the chords to a song if it is in an alternate tuning. How do you establish the tuning?".
BTW, the link to the 'Nut Chords' reference in the post above no longer works. Are there any new similar sites or programs that anyone can recommend?
All the best, Áine