Interesting to hear the stories about Edinburgh. And,yes, October Song is played in open D though you can most of it in a dropped D tuning. There's a book by Happy Traum giving transcriptions and tablature for a lot of their stuff.

I dug out a dusty copy of Happy Traum's book and this gives open D with capo on the 5th fret.

This also reminded me that I borrowed this book and should have really returned a long long time ago. Is it still possible to get this book?

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