Did MGM make the correction in the opening title sequence of the blu ray? I recall reading that they had placed (incorrectly) a fade out after the overture.
I was fortunate to have met and worked on a project with Marni Nixon just a few months ago at Symphony Space in New York. I created three videos for the event, but I also recorded the audio and took a few pictures and videos.
Now with her passing, I thought some of her fans here might enjoy me...