There's been a lot of Malicorne & related material turning up on Dime recently. Think it's later 70s Malicorne and a reunion tour by Gilbert Yacoub and one other.
There was also a 1/2 hr video set by Alain Stivell from Cork in '78.

Oddest thing I found related to this stuf was the bassist from AMT slipping into what sounded very similar between numbers when they played live here 2 years back. Isn't La Nova based on similar melodies too?

got that from Demonoid last week. Think it described it as arabic surf music but it gets a bit weirder than that very trippy in places. Wasn't sure when it was from though. Bits sound like they're contemporary and others pretty early 70s.