As much as I'd hate to triple-post, I have to wonder if anybody would know where/how to acquire somewhat original music. Cos if there's one reason it sounds so good it'd have to be because most of it's from other Sierra games.
And one visual novel. Which, if you don't go too recent, might be an answer. Of course, modern VN don't use MIDI at all...
Still, my question stands. Any suggestions regarding other types of content are of course also welcome.