I think heÂ’d like a type of songs and she would like different ones. I donÂ’t think they hate each otherÂ’s taste in music and they can certainly listen to what the other is listening with no problem, but itÂ’s just not what moves them necessarily.
And then there would be old songs (sometimes cheesy ones) they wouldnÂ’t necessarily like to listen to by themselves, but theyÂ’d like to listen and even dance to them together.
In my headcanon, in whatever place in the world where they find themselves in, Scott is always able to find that radio station that plays the old, cheesy, romantic songs in evening! ItÂ’s part of his mutant power!
In my headcanon, her perfect recollection ability came in handy when they spent those 12 years together in the future. Without music, they sang to each other so they could still dance.
Speaking of their dancing, some days ago I found a cute fan art about it. IÂ’ll share soon.