I first heard a recording of this more than twenty years ago on an album by the late great English guitarist John Renbourn.
If you would like to learn how to play Misty Mountains on the guitar, I offer one-to-one guitar lessons at my home studio in south London or on-line via Skype
If you like this video, then you might also want to look at these videos:-
How to play ‘A Waltz for Rebecca’ on the guitar
How to play ‘Rosalie’ by George Root on the guitar
How to play ‘The South Wind’ on the guitar