I don't think the track has an extra AdLib track, because these were always on tracks 1 or 11-16, and the LSL3 MIDIs have none of that.
Also, 'wrong' is a bit of a funny way of describing the mix, as the changes I made were essentially a matter of personal choice.
It's fine if you don't agree with my choice, of course, the question is, how it sounds overall.
I looked this up years ago. When editing the Larry 3 soundtrack myself for the first time, the fretless bass sounded completely different than I remembered in Tom's versions, and for a long time I thought I'd done something wrong! However that wasn't to be the case.
It's very simple but extremely weird - the game sends incorrect data for the Nontoonyt track! It includes both the MT-32 bass AND the Adlib bass (channels 2 and 7). They run on different octaves and the MT-32 one uses pitch bend. Channel 2 is the correct bass as per the extracted MT-32 track (and sounds more correct). Channel 7 is a different octave, and has no pitch bend. It's designed for the Adlib (or other lower order synth) track. For some reason the track was put in the 2-10 range instead of 1 or 11-16.
I can confirm this by referring to my archives - extracted tracks and my recorded tracks. My recorded tracks come out the same as Tom's, with the extra bass, and also the Adlib and other tracks on channel 1 and 11-16 get recorded. My extracted MT-32 tracks come out without the 2nd fretless track (and also label it as 'm', meaning MT-32 only, as no other letters are mentioned like 'a' for Adlib).
So, I need to take back that Tom made a mistake - he unintentionally reproduced some sort of coding error where an Adlib/other track slipped through and is sent by the MT-32 driver.
As for your CM-64 versions, personal choice is subjective. I'll never say you did something "wrong" that was a choice!
As you are well aware, we all would make different choices. I would go back and make many different choices to "enhanced" versions I myself did years ago. And you can't please everybody, as you also know. Hopefully you now realise my 'wrong' referred to the source MIDI, not something you personally were responsible for.
I also haven't listened to them with headphones, which will give me a different POV. Still, I think Nontoonyt in my personal opinion, given it's an electric piano in the MT-32 version, a faithful conversion would result in it being one in a GM version. But making it acoustic isn't some sort of hanging offence
On a totally different note, is it possible for you to do easily, or did you in your edits, do a complete CM-64 version? I would love to hear that. Nothing wrong with what you did and I mean no disrespect at all, but I am *extremely* familiar with the Roland MT-32 version of this score, so it'd be cool to hear it all be PCM (and not SC-55!).