One of the doctors long ago explained that Jeff has an elipical way of speaking. True enough. He makes elaborate connections, but he doesn't bother to articulate them. Rather the onus is on the listener. So an ordinary mortal would respond to that question appropriately, "Whaaaat?"
But I have known Jeff long enough to jog along with his mental and verbal locutions. He recognized the song, TAKE ME TO THE RIVER, by a few introductory notes but what he really remembers is that he once saw one of those singing fish. When you pushed the button, Billy Bass did indeed sing this very song.
What is he going to do when I am not around to translate or help to sort through his mental file cabinets?