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am hoping to dive into this catalog.
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I know the LP albums are somewhat different from the CD albums - almost like PARRY MUSIC which also has a notable shift from the overall audio - but if you are interested into the CD albums as well you can download 320k MP3s directly from their official website including all the underscores and stingers!
hibou-music.com/albums-musical-illustration.html is your starting page.
It is a bit clunky as you have no real album select but a genre categorization, but with a mix of direct search and clicking through the genres you will eventually have access to all the CD albums. Unfortunately, there is no player going on so once you demo playback a track it will keep playing. Here is the 1989 album "INDUSTRY" for example:
(https://i.postimg.cc/0NkxXcZb/Untitled-4.jpg)
Also, you have to download track-by-track. Select a track, hit play so it knows what track and then click the 320k MP3 button. It takes some "mouse clicking work", but as said, for watermark-free, full CDs ready at your fingertips and delivered to your living room directly from the very publisher without any tricks (like CDM music where you have to fish for the files in the browser's cache) it's a nice thing - not only for you but anyone out there reading this thread.