I did a guitar arrangement to accompany Let Me In This Ae Nicht a while back, it's in DADGAD and for the intermediate/advanced fingerpicking guitarist! Goes great with the melody when sung. Might as well stick it on here in case someone is ever inclined to give it a spin.

Martin Carthy's solo version of Cold Hailey Rainy Night was always the best in my mind. I love how you can hear him sort of grunting along with the melody during his instrumental guitar breaks. Pure folk.