If you live near or in New York City, there are concerts just for children at Lincoln Center or you might like Saint Saens Carnival of The Animals, Prokofiev's Peter and the Wolf both are on CD - Peter and the Wolf is also on DVD. There could be something available where you live.
Look for Carnival of Animals with a narrator, the same with Peter and the Wolf if you get cd's.
There is a lot of music for children - you and your son could listen to the music you love together - if you are near a school of music or a college with a music department, I'm sure they would be very happy to get you started. Keep in touch