Help remembering an old X-Men crossover from late 80s/early 90s

Hi, I'm hoping you all can help me track down some old X-Men comics based on vague memories from over 30 years ago.

My dad grew up reading comics, and XMen were his favorite. Sometime in the early 90s he was on an out of town business trip and wandered into a comic store and bought a bunch of issues of an X-Men comic that was part of a crossover event. This led to him getting back into comics, something that would continue (to my mom's dismay) for decades. I am trying to find this specific crossover event.

Here's what I remember: the event took place prior to the Claremont/Jim Lee X-Men 1991 release of the Blue/Gold XMen comics. I specifically remember this release and already being into XMen comics, though I suppose my timeline could be a little skewed and I am remembering the animated series release in 1992, and then going back to buy the Claremont/Lee XMen #1.

I don't remembered the plot to the crossover, but I think it took place in the Annuals at the time, and the style of the art was much closer to a more 90s aesthetic than the late 80s. Brighter colors, thinner inking, more glossy paper (?). I don't know, i just don't remember it looking like the 80s.

I think the logo for the event, which was emblazoned across the top of each issue was blue and gold, was some made up word or Xmenized word (ie X-Cutioners Song). I understand that this basically describes all 90s XMen comics.

I am not sure if this story was canon to the current comics, or what the plot was at all. I think I only looked at the pictures. Sorry.

Any help, or any ideas would be greatly appreciated. My dad passed last month, and I was just thinking back about comics, and this memory of this specific crossover that lead to a resurgence in interest in comics for my family. We used to call it my dad's midlife crisis.

Anyways, any help is appreciated. I'll try to answer questions or fill in vague memories as best that I can. I am hoping that if I see the cover it'll spark a memory. Thanks!