The Misty Mountains Are Much Longer Than I Remembered

I’ve been getting a lot of covers of “Misty Mountains Cold,” the traditional dwarf ditty sung at the end of The Hobbit trailer, from straight-up renditions to rock covers to whatever. However, this is the first time I’ve been sent a cover of all 27 verses of J.R.R.’s poem, complete with one-person three-part harmony. I’m not sure who the singer is, but in the YouTube description she apologizes for not being able to sing or play. If you guys would help correct this erroneous belief in the comments I’d be most appreciative. Much thanks to Andre B. for the tip.