I'm so glad you mentioned the piano bar. I too remember 747 flights as a child and being amazed that there could be a piano bar on an airplane. I mentioned this

I'm so glad you mentioned the piano bar. I too remember 747 flights as a child and being amazed that there could be a piano bar on an airplane. I mentioned this to my parents a few months ago and they didn't remember it, or even believe it was possible. I had begun to doubt my own memory, thanks for that!