> Harry Potter and the Chamber of Secrets comes to mind. William Ross did a
> lot of work on that one. I'd also bet my left nut that Ross did some
> composing work on The Force Awakens as well.

I was considering naming CoS, but I think that one was/is different in as far as (A) it is well-known that Williams was under a time crunch (cf. Jon's comments on that issue, even though the information out there is a bit conflicted, as some sources indicate that Williams' really did compose the meat of the score; more below) and (B) Ross' got credit on the CD and in the movie.

As for TFA, I have no knowledge nor have heard rumours, but for your sake, I hope you had more than one nut to begin with, so to speak.

Back for CoS: Other people say Williams' just wrote the new thematic material and left the adaptation/implementation and conducting duties all to Ross. Is the jury out by now on what hews closer to the truth?

And yes, I had forgotten about the roles that Thomas Newman et al. played on RotJ. Thanks for jogging my memory on that one.

Another composer where I am not aware of any ghostwriting (outside of proper collaboration) is Howard Shore. But even here, rumours about Desolation/Smaug and Five Armies have it that Conrad Pope's duties were more than orchestrating, conducting and changing stuff on the podium. But again, I have no inside knowledge, and may remember things in the wrong context.

CK