This is an interesting site and another site stuffed full of Dave Williams’ sets - check out the fancy work on the sound boxes on the musee virtuel. Marc Guilloux has that monster Froment with hundreds of regs and thousands of drones that featured on the front of An Piobaire a while back. His concert set is a four reg set by Williams. There’s some nice photos of the Froment.
Ken
Tres interessant, n’est-ce pas?
Est-ce que Remy Dubois vraiment une cornemuse Flamande?! 
(apologies for my rotten French…)