check dlc folders also main folder may you need just install that thing

Thanks. I know that these soundtracks could potentially be in the game's catalog. But I don't want to download and install it specifically for that. I'd prefer a clear statement from the manufacturer. And I'd prefer to have them marked in the library, not just physically. That way I'll never complete the entire collection, or I'll be forced to buy it again. And I bought the key here on Steam, for ♥♥♥♥'s sake, not in some key shop!