I was going through my old original install discs, from classic up to the evolution pack that was released (with LoY). I didn't play during the original classic era, but the guy who got me into Everquest gave me all his old discs, years ago when he moved away.
I gathered all the XMI sound files, which range from 1999 to 2001. There is 84 of them total. I zipped them all up in case anyone is interested in them.
You can find the download here:
https://tinyurl.com/eq-xmi-files
EDIT: Download was corrected.