It was great to have a passwood based around songs. Am tempted to write another some time in the future, now you've shown us it can be done.
I think that kind of puzzle does need to start with a general/theme hint, though, because otherwise there is no 'straight part' to the clue at all. You could probably find a wood or forest next to pretty much every place Tolkien created where a song was sung.
(With the possible exception of the orc song sung under the Misty Mountains. Or Gimli's song in Moria. Athough even that one mentions a green world).
Reminded me a little of a great one Galadriel did about Tolkien family members. It would be a few years ago now, I guess.