Taken in the spirit of it, I'd say there are many cultural 'coincidences' between Tam Lin and Thomas Rymer, and yet still, they are plentifully distinct. Aside from the obvious drama, there is in both instances, glorious allusions and metaphor into human nature, and the magical beliefs of the times. Great stories, Mythology, Adventure, and Romance... heck, if there isn't spirituality too.

Blessings, and G'day,ttr