Hello everyone

I’m trying to identify a very rare, library music track that has been haunting me for years.
This piece was broadcast no later than 1986, following a technical breakdown on the French TV channel FR3 (before it became France 3).
It was used as background music during the interruption, and I strongly believe it comes from a library music catalogue, but unfortunately I have no information about the title or the composer.
Here is a YouTube excerpt where the music can be heard:
If anyone recognizes this track, or has any clue about the composer, catalogue, label, era, or even just the musical style, I would be extremely grateful

Thanks in advance for your help — hopefully we can solve this mystery together!