I corresponded with Gabriel briefly in the 70s when I was writing on French-Canadian 78 rpm recording artists of the 30s and 40s for JEMF Quarterly.

He did a fine book on that topic, Les Pionniers Folkloriques du Disque Quebecois, still to my knowledge the premier source -- dug out all kinds of biographical information and photos of artists like J.O. LeMadeleine, Isidore Soucy and so on.

It's a whole musical world almost unknown here in the US, and his contributions helped greatly. He'll be missed.

Bob