Maybe someone's already done this. However, here's my attempt at a partial discography in approximate chronological order for Joël Fajerman (born 1948, Paris, France):
Format is generally:
• [Label] catalogue number - Artist name(s) - Title of release (Year of release) format note if any [other note, if any].
If not otherwise stated, format is 12" (33 1/3 rpm) LP. "VA" = Various artists.
1978
• [Musique pour l'Image] MPI LP 545 - Joël Fajerman, Jan Yrssen - Racines Synthétiques (1978)
• [Editions Dany Marchetti] DM 1002 - VA - Dany Marchetti - Vol. 2 (1978) [Credited on tracks A1-A5.]
1979
• [Sonimage] SI 824 - Joël Fajerman - Prisme (1979)
• [Sign] SIG 90 600 - Pierre Laurency & Joël Fajerman – Terre de Feu (1979)
• [Crea Sound] MC 8019 - Pierre Porte (with J. Fajerman) – Lollipops (1979)
• [Charles Talar Records] CT 2013 - Pierre Porte (with J. Fajerman) – Flash Resonance: Nostalgic 1 (197x ? 198x ?)
1980
• [Musique pour l'Image] MPI LP 547- Joël Fajerman - Painted Desert (1980)
• [Patchwork] MC 56 - Noëls - Enfants (1980) [Tracks A2, A3, both titled 'Le Noël des Enfants,' by J. Fajerman]
1981
• [Psi] PSI-X-201714 - Joël Fajerman - Azimuts (1981)
• [Musiue pour l'Image] MPI LP 549 - VA - Tramp (1981) [Tracks B3-B8 by J. Fajerman.]
1982
• L'Aventure des Plantes / La Aventura de las Plantas (1982)
- France: [Carrere] 67915 - Joël Fajerman – L'Aventure des Plantes (1982)
- Spain: [RCA Victor] SPL1-7339 - Joël Fajerman – La Aventura de las Plantas - Serie T.V. (1982))
• L'Aventure des Plantes Flower's Love 7" single (1982)
- Spain: [RCA] SPBO-7346 - Joël Fajerman – La Aventura de las Plantas (1982) 7" single
- France: [Carrere] 49 947 - Joël Fajerman – L'Aventure des Plantes (1982) 7" single
- Germany: [Papagayo/EMI Electrola] 1 C 006-53 929 - Joël Fajerman – Blumenliebe (1982) 7" single ["Blumenliebe" = "Flower's Love" in German.]
\--> [NB: The B-side of the 'Flower's Love' 7" single is the track 'Holiday Village,' apparently not issued elsewhere.]
1983
• [Carrere] 67 974 - Pierre Porte – Le Passager (1983) ([Victor] 67974)
1984
• [Patchwork] MCT 75 - VA – Jingles (1984) [Track number A7, 'À la une à la deux,' by J. Fajerman.]
1985
• [PierJenn] PRJ 1009 - Pierre Porte – Electric Ice (1985) [Programming by J. Fajerman.]
1989
• [Sonimage] SI-CD 001 - Joël Fajerman – Regards (1989)
• [Disques Adès] 11.174 - Brenda – Les Enfants de la Liberté "Un jour, les enfants..", Chanson • Originale du Feuilleton Télé (1989) 7" [music composed by J. Fajerman]
• [Sonimage] SI-CD 002 - VA - The Best Hours (1989) CD [A compilation of various composers' tracks. The J. Fajerman tracks are numbers 2,3,9-13,18-20, all from earlier albums.]
1991-94
• Les Inventions de la Vie (Musique originale de la série T.V.) / Inventions of Life (1991) LP/CD
- Spain: [Ariola] 5C 211 837 - Joël Fajerman – Inventions of Life (1991) (CD: [Ariola] 9A 261 837)
- France: [Columbia] COL 477571 2 - Joël Fajerman – Les Inventions de la Vie (1994) CD
Post-1994
• [Kosinus] (cat No.=?) - Joël Fajerman - Convention 80 (2010 or 2020?) Digital release [Compilation - all tracks from earlier albums.]
I'll add new items to the above as I find them. ... If you see anything missing or mistaken, please feel free to add or make corrections. Thanks.
NB: This is meant, partly, to go along with the post ('Joel Fajerman & Co') in the vintage rip section by Vslava (and later, LMTH303 and OrganGrinder) featuring some of the above releases. See librarymusicthemes.com/index.php?topic=3753.0.