Syd Barrett
https://youtu.be/xIc2EgS9MNg
David Gilmour
https://www.youtube.com/watch?v=PcT-xjnHCLA
Richard Wright
https://www.youtube.com/watch?v=fOiZK7WAo9M
Roger Waters
https://www.youtube.com/watch?v=NLWEpS5ixO8
Nick Mason
https://youtu.be/b5lS6ItGWsY
and
https://youtu.be/Nw1643T0RD0