I finally played my wife's favorite song, "Stranger on the Shore" for her. It's the first time I've played anything for her. I had a couple of short hesitations, but minor. She really raved about it! She said she loved it, and she sang along with my playing she said, although very quietly so I couldn't hear her.
She said she didn't notice any hesitations and that it sounded smooth.
I'll call this a "Win"!