http://dylmei.tumblr.com/
For a start, a lot of it is in Welsh ...but it hasn't been updated for a while ... this is a real treasure chest of Welsh-language music both old and new. It goes from 70's metal bands to GZM and then back to tweed-suited folk groups . A lot of the music is sound files, but that's OK. Here's one of the bands he features .... he describes them as " hair metal" whatever that is, so here's a god-knows-how-ancient performance from Ceffyl Pren ... "Mae'r Ddraig yn Hedfan" ... yes, I bet it is ! And we all know why don't we ?