ummm im not sure on this one, it could be half lucid, or it might just be sleep walking and talking. my grandma did the same thing with her uncle accept she did it on pourpouse, she put his hand inn warm water and started asking him questions and he would answer them. it sounded pretty funny, but are you saying she sung while she was asleep or awake? because you said she went into the bathroom and woke up with that expression on her face after she sung and stuff, your post is kind of consing but i get it a little, it sounds to me that she slept walk. its pretty amazing for a person to write a song on paper in her sleep i mean if she did. well give me a reply and well sort this sleep thing out. bye[8D]