Youtube and copyright

I’m not sure why I’ve had an email from YouTube about a copyright claim from a Flutewise video from a course way back in 2010. The young flute players play Sumer is a cumin in (which no one has any idea how old it is or who wrote it and the other piece is Greensleeves performed by Matej Zupan - it’s lovely playing, you should listen. Both of these pieces are in the public domain and these editions are from our Flutewise publications. I’m confused.

Flutewise members made short video clips about different aspects of our course. In this clip we see the chapel at Abbotsholme School where we do most of our work when we are in a large group. There is a wonderful grand piano in this beautiful room.