Yes. This was the single disc one with 10 tracks:
https://www.discogs.com/it/release/11895346-John-Williams-4-The-London-Symphony-Orchestra-The-Empire-Strikes-Back
And as far as I remember this one was originally available on double CD with all 17 tracks:
https://www.discogs.com/release/1306165-John-Williams-4London-Symphony-Orchestra-Star-Wars-The-Empire-Strikes-Back
He probably has if listening to the expansions.
I already counted that in. Thor’s collection with all the OSTs and concert works plays for about a week. If you add the unpublished TV works plus the expansion I guess, it will be something below a Month.