Would like to know as well. Whenever I suggest something new it's a default "NO!". But if it just happens naturally it's ok. Like if I put on a song and suggest he listen to it, my kid will literally scream and cry like I'm torturing him, but if it happens to be on the radio while driving then suddenly it's fine and he'll love it. I think part of the reason is that everything is on demand these days, unlike when we grew up on broadcast tv and radio.

A little embarrassing to admit this, but I find it harder to listen to a new song or genre if that's the main activity I'm doing - like sitting down to just focus on the song. If I put it on while washing the dishes or driving I don't feel as pressured about it.

Maybe this is involved a bit? asking your son to listen to something could be making it an activity, maybe put it on while you do something else and then ask his thoughts on it after?

Arouse in the other person an eager want.