amandalouise, you are not addressing my original question. It sounds like you are reacting to seeing the words "imagination" and "DID" in the same post.

I'm not imagining having split-off personalities. Also, when I COULD imagine music I didn't take that to be evidence for having an alter.

Imagination of music is creative imagination, the kind any musician or artist or poet would use. It's closely related to what you do when you read a novel.

I don't have good awareness of ALL my split-off personalities... I know there are many thoughts that I can sense only subliminally. Also all internal sound is muted. Other times I'm clearly aware of a personality. I'm getting more clearly aware over time as I progress in therapy.

So my original question is whether an alter can possess the function of creative imagination. Whether anyone has had that experience.

It sounds like some people don't lose the memories and feelings and capabilities of their split-off parts. And perhaps jimi did have something like that happen when she describes being unable to do art suddenly.