We share just about most interests/hobbies - music, humor, literature, history, art, movies, hiking, nature, mass, travel, food etc. We even do Revolutionary War reenacting together. I was leary at first, especially since I was to be a lowly camp follower, but after my first reenactment with him, I actually had a lot of fun.
Only thing we don’t really have in common is that he loves to play video games - especially Medieval Total War. I don’t care for video games. He’s also really interested into Antique guns like Brown Besses or PA Long Rifles. I can appreciate the beauty and the artistry of the workmanship, but that’s about it. He’ll do a lot of reading up on it. He likes Shostakovitch. I appreciate his work, but not as crazy about it and won’t go out of my way to listen to it. Although our taste in music is pretty much the same.
With me, although he LOVES lieder, choral music, oratorio, etc., he’s not as crazy about opera - BUT does like the arias, ensembles - just not the whole opera. I’m an opera singer and the dear man will actually come to see me perform. He’s more interested in seeing me. Although he really does enjoy it when I do lieder recitals or things of that sort. So, I guess we don’t really have much of difference on the opera/classical singer thing.