While I am searching through old recordings, I came across this one: La Nuit des Gitans - l'Olympia de Paris, 1970. It seems to originally have been a French radio (or possibly TV) broadcast, maybe later issued on LP (not sure); my copy came on a home-burnt CD received in trade for something or other... Tracks are as follows (any further info appreciated)...
La Nuit de Gitans - à l'Olympia de Paris, 1970
(Broadcast French Radio or Television; off homemade CD copy; possibly issued on LP, details not traced)
1-2. Maurice Ferret, solo guitar; Babagne Pouville, guitar: I love you / Melancholy baby
3-4. René Mailhes, solo guitar; G. Arvenitez, piano; Sammy, bass: Someone to watch over me / Blues
5-6. Matelo Ferret, solo guitar: The man I love / How high the moon
7-8. Stéphane Gappelly, violin; Marc Hemmler, piano: Ballade [=Londonderry Air] / I got rhythm
9-10. Jacques Montagne, solo guitar; Ch. Garcia, guitar; Giraud, drumns; Sammy, bass: Les feuilles mortes / Canone
11-12. Chellin [Chaillain] Ferret, solo guitar; Valia Belinsky, piano: Mélodies tsiganes / Deux guitares
13-14. Babik Reinhardt, solo guitar + others: Nuages / Minor swing
15-16. "King Baro" Ferret, solo guitar + others: Choti; Minch valse.
The recording does not seem to be completely unknown since a couple of tracks have been uploaded to youtube by separate persons, but I have not been able to discover any further details - however the music is good (and historic) and there are some pretty rare artists represented...
Enjoy - Tony