One thing my mother did that was absolutely right was play music on the hi-fi as I was growing up. That, and she liked to sing, even though her voice wasn't all that good. Sure, her taste ran to the novelty songs of her younger days - I can still hear her warbling about "...And they swam and they swam all over the dam." But music was supposed to be fun, interesting. (Rock was never interesting, which is why she never paid any attention to it.)
This is one of the big challenges der Grampa and I have, figuring out how to introduce the grandlads to music. Magic Mommy doesn't want to have it around. "I CAN'T THINK WITH THAT STUFF PLAYING!" she wails. (I've yet to find any evidence that she thinks when it isn't playing, but that's a different matter.) She doesn't even want to hear the lads singing along with their Discmen while they have their headphones on.
That's why der Grampa always has my Discman available in his car, with a variety of discs for them to choose from. We have the Discman plugged into our car radio, so we can all listen. And singing along is encouraged.