My brother-in-law, a skeptic, recently reported that my sister sang, in her sleep, the entire lyrics to "This Old Man" in a child's voice. What he said next was puzzling. He said that it sounded like someone was singing with her. Has anyone ever hear of this type of activity?

Is there anyone that used to sing to or with your sister that is now deceased?

Quite frankly, there isn't a manifestation I don't I haven't heard of. Singing is something that does happen often, especially when related to children. Have they had any problems in the home? Has your sister ever experienced anything paranormal that you know of? Has there been any change in her personality of character traits recently?