I'm incredibly quick at learning music/songs by ear, mostly singing cuz even tho I've played a couple instruments for... God 15 years... I still can't fucking find a tune on them to save my life
But if I hear a song with coherant lyrics 1 or 2 times then I can repeat it from memory acapella, instrumental solos and all, with perfect accuracy on lyrics and like 95% accuracy on the notes due to my iffy singing voice
Probably related: on the fly ad-libs replacement of lyrics. Like coming up with a weird Al parody on the spot (not saying mine are as funny or anything just giving an idea). I can even make them coherent and properly rhyme for a verse or two sometimes if I'm really on a roll. Too bad I get so embarrassed in front of people that only a few have seen it IRL, but it's always been a hit at the DND table when I needed to improv tavern singing or something