Oh nice which track is the "hidden" one? I have to admit I own Deja Vu but haven't actually played through it yet 👀
I'll def check out Zophar on Twitch his website is such an epic resource
...and really glad you liked the game 😎
It' s used a few times, but at the very start of the game's dialogue ("wtf"). That song isn't used anywhere in the game - I ended up over on The Cutting Room Floor and there are actually three unused tracks hidden in the game's data!
I grew up with Shadwogate and Deja Vu - they're both fantastic. I wish I could afford a copy of Uninvited, though. That game is also great.