Hi Ron,
I didn't very well understand it either for the longest time, but we had a discussion that you might find useful here:
http://www.whatsbestforum.com/showt...d-theoretically-sufficient-timbral-resolution
In post #1 I point to a link and a video that was discussed many times at WBF by xiph.org. These are worthwhile (I think you watched the video once).
I thought Groucho's response # 15 to my original post was very helpful, and I particularly appreciated Amir's responses # 14 and # 22. There were several other helpful contributions too.
***
Again, all this is the theory. Based on audible results it was clear that until now the practical approach to the perfect theory was rather compromised indeed, when it came to processing of complex music signals rather than sine waves. That may be changing now with the latest exciting developments at the high end of digital implementation.
When I heard the dCS Vivaldi and later the dCS Rossini on plain humble 16/44 Redbook CD I thought, "so digital theory really is correct!". No doubt the results from these playback sytems will be improved even further in the future, but it was so good and convincing that any lingering remaining doubts about the theory were laid to rest, at least for me.
Al
Thank you very much, Al, for this roadmap to past discussions of this topic.