#1
Hi, I've been trying to find the tuning Trey Anastasio uses for his acoustic version of Back on the Train. There aren't studio recordings of this version, but here's a clip:

https://www.youtube.com/watch?v=9wpVfKJ3hPY
https://www.youtube.com/watch?v=j9gdODKopcM

I think it's some sort of drop C, but beyond that I can't piece it together. Any help at all — especially if somebody has the full tabs — would be greatly appreciated. Thanks!