Yes, the vinyl set was a partnership by Sue Mingus and Fred Cohen. I believe Fred still has copies for sale.
Was not aware that Fred Cohen had anything to do with the Ulysse Musique releases. The Amsterdam concert albums (a double LP plus a single one' state they were 'produced for records by Ulysse Musique with the kind permission of Jazz Workshop Inc. and Susan Graham Mingus'.
Ulysee was a French label that also issued a Cannonball Adderley concert.
Great sets, yes!
I used to be one of their distributors. I think Sue received "product" for the US market in payment from Ulysse Musique and Fred handled logistiscs/labor. I initially ordered stock from Fred and finally Sue called me offering a deal if I would buy the remaining inventory. I didn't have the bread. Anyway, within the last year or so Fred still had stock.