From some of the manuscripts posted in another thread from the Ricardo Viñes collection of music manuscripts, we have a handful of works from
Lucien L. Bernheim dated 1925-1928.
There seem to be a few musical Bernheims, but all centred around Montreux Switzerland.
I am surmising that Lucien L Bernheim and his singer wife Madame Rose Bornet-Bernheim might be the parents of pianist Alain Bernheim (1931-2022).
He was the author of
Cinq chansons populaires judéo-espagnoles du XVIe siècle (1920) and wrote further art-songs based on Sephardic melodies, and it appears that is his main legacy.
There is a diary entry in the Schoenberg archives of a visit with Bernheim in July 1931.
Biographical data is sketchy.
BNF record:
https://data.bnf.fr/fr/ark:/12148/cb148444438
Anyhoo... the first manuscript I've engraved is
BERNHEIM.Lucien Morceau pour piano (1928).pdf
You do not have the required permissions to view the files attached to this post.