You Tube Video courtesy of Francois B ‘Legrandchene’
The song is ‘Seigneurs, sachiez qui or ne s’en ira’ (Lords, know that gold will go away).
It’s interpreted by par René Zosso (born Geneva, 1935).\
He is described in an article as a ‘chanteur vielleux’  which translates to something like:
‘singer hurdy-gurdy player’.   Discography: http://fr.wikipedia.org/wiki/Ren%C3%A9_Zosso

There’s a connection between Thibaut de Champagne and the Forêt de L’Isle Adam.  Look out for it in a forthcoming blog.  Meanwhile, enjoy the music …

Ann