My favourite song is “The Mist-Covered Mountains of Home”. It is featured in the movie
“Local Hero”, which is a wonderful film set in a small village in Scotland. I had a heck of a
time finding the music. I finally got a digitalized version off the net and made my own
arrangement.
“Ashoken Farewell” is a similiar song in type, but is fairly recent. “Ash Grove”, while not as good, in my opinion, is an example of some very pretty Welsh music.
Another beautiful, haunting Welsh tune is “Aberystwyth.” And you have almost certainly heard “Loch Lomond.” If you have not, it is easy to find midis, mp3s, etc. of it.