I've been a parent for nearly 8 years. Prior to that, I did a lot of time with the preschool set and if those years taught me one thing, it's that I love children but don't always love children's music.
Though there are some notable exceptions, I generally have found children's music to be tiresome. So I've always introduced the children in my life to adult music that is appropriate for them. No AC/DC singing about the "Highway to Hell" but plenty of other good stuff.
JT and I listen to CDs of music that I make on my computer. Between my own collection and the stuff at iTunes, I've burned plenty of good music into the boy's brain. It's something that we share and enjoy together. This past weekend, I collected a bunch of Eric Clapton songs together onto a CD and this morning we listened to those songs on the way to school. After song four, JT said, "These all sound like the same guy is singing."
"It is the same guy," I answered, "his name is Eric Clapton."
And as Clapton played the guitar in the background an astonished JT said, "Wow. I didn't know you could have a whole CD with the same guy on it."