Orchestre Bekummernis from the 1980s, with Luc Le Masne, limited time only

 

Info here:

Large experimental/jazz/rock orchestral ensemble led by Luc Le Masne.

Often referred to as "Le Grand Orchestre Bekummernis"

There's a lot to slog through here, and you'll understand what I mean.  It's true this is quite similar to the earlier posted German Andromeda, but more orchestral, chamber, and classical composed.  But the mix of fusion, jazz, and classical is a good amalgam here.  From Nosi, the really beautiful composition called II. Bleu goes through all the dynamics of different emotions:

Of course, a lot of the composition is atonal, modern classical, but the instrumentation which is about half based on big band, makes up for the slightly sterile cold and clinical quality of their classical stuff. There's also, as you'd expect, a lot of libraryish or soundtrack type composed stuff with the usual bombastic violins smashing out the movie themes.

From Cercle de Pierres, the 7th track Aquhorthies: