The group. Not a random tart in a wimple

I've heard of them a few times. They perform medieval songs to semi modern music; some songs are more traditional in tone than others. Today was the first chance I had to listen to anything by them. An author whose website I check occasionally had a link to a video of them singing a medieval carole.

Five minutes later I'm on the group's website downloading the five sample tracks.

Quarter of an hour later I've ordered all 6 albums.

Perfect for a frog to write her medieval fiction to.