In a 1954 issue of an accordeon magazine I read an article by Léon AGEL about Jo PRIVAT. In this article AGEL reminds that Privat was spending most of his time with romanichels learning his job with the gitans and that he played guitar as well as accordeon in the purest rabouin style.
He says that he heard wonderful concerts, after the ball, when he was lucky enough to spend the rest of the night with the whole pack : Django REINHARDT, Saranne and Pierre FERRET aka BARREAU or CAMEMBERT, Fredo and so on...
This happened back in 1936 in the rue de Lappe.
Does anyone have an idea about who could be this Fredo?