When I met the man who was to become my husband (and still is!) back in the early 70s, we seemed to like a lot of the same music, which included folk, classical and some pop.
Over the years our interests seem to have diverged somewhat, with him being more likely to listen to plays and chat shows on the radio (BBC Radio 4 and 5 Live) or, if he does have music on, it's Classic FM. You could say his favourite piece of music us "The Archers" theme tune! My usual channel will be BBC Radio Scotland, where you get a mixture of chat and some good music programmes.
I am much more involved in playing trad and folk music than I ever was: this sometimes involves having friends to the house to practise for a gig: his cue to go out! He will come to the local folk club once a month, just because it's near and he might see some of his pals, but not interested in going to any other folk gigs elsewhere. He does come to 2 out of the many festivals I go to, but only because they are in places where he has family/friends, or he just likes the place: definitely not there for the music!
The car journeys, ah yes, now there us a source of disagreement! If in his car, we'll get any of the radio progs above, but dare I put a CD on? (Don't think he even knows where the CD slot is!) In my car, with my choice of music, it will be, "Do we have to listen to this rubbish?"
And as we get older, neither of us hears as well as we used to: so the radio will be on full blast, and then he tries to TALK over it, which really means shouting to be heard. Now that really does my head in! "If you want to talk to me, turn the bl@@dy thing off"!