Thanks John, that makes it easier to hear the tunes.

In the "clean" tunes there is a lot of extra sound because each prong/tine (correct terminology?) keeps ringing after it is struck so it sounds like a small sea of noise. To pick out the melody from all the sounds was difficult.

Listening to the slow ones it's easier to identify which notes are the melody.

Now to identify the tunes. Is it possible that some more of the tunes are Welsh?

I had a little twinge of recognition on one of the tunes but I'll have to listen to them all again and try to dredge up more information from my ageing brain. Also now that I have heard the slow tunes, the clean tunes might make more sense.