Wow ! You are a real genius man Kenneth! You know that? I'm more and more impressed by what you are doing and how FAST you are doing it... Now I see and understand that I might be hard to implement such a feature.. The test update you posted showed me exactly that.. Some of the files, have just some cryptic "letters", not even readable as anything, when some others did have song names... So I guess there is no way to let a software figure out what's what ?...
AND, by investigate a little back into those midifiles listed in IDM with description, I found that the description did NOT come from the midifile it self, but from the websites that hosted them...
https://gasilvis.net/ So, I guess few websites actually shows the wholde name of the song in their listing, and then the file itself, when downloaded, have just a short name...
So the problem is; I COULD take a text copy of the whole listing for the song names, then copy and past it into the right file, one by one.. BUT the problem with THAT is that Gasilvis Net does NOT show the filename besides the full songname, so it will be impossible to do.. Only if I could convince IDM to make it possible to copy the listing and past it to a text file, would it be easy to do.. At least one by one, Puh...

Perhaps I should try another downloader, but I doubt if any other downloader has that function I love with IDM, that in ONE GO, it can download ALL files from a website...
Anyway, thank's a lot for looking so seriously into it...
BTW, I notice that NOW, I could see the bottom of the override window, so you fixed it already ! Thank's a lot man !