I was talking to my Mom about Beatles music on the weekend. My Dad and her were "older" parents, but they were totally cool with music. For a while, my Dad worked in a department store and would keep up on the best selling rock n' roll records and bring them home for us. He & Mom weren't really into rock n' roll, but they didn't dislike it either.
My Mom share's in our enthusiasm of Beatles music and our sisterly love for Paul! 
She get's "it". The only bad thing my parents ever said about the Beatles ...