Dear Colleagues,
Thanks a million for your replies.
I appreciate it that it looks like I'm in musicologist mode here; but the question was posted with composition of a new piece in mind. Inadvertently, I found my own piece being planned in discrete sections that must however bind together. Hence in looking for mechanisms to make sure it is unified, La Mer came to mind. But although I'm no spring chicken, I am relatively new to orchestral composing and it does explicitly say on the welcome page of this web site that it is for new composers of all ages. Hence I felt it justified to post my question. I also felt that any pointers derived would be of benefit to all reading the forum.
I do not believe, by the way, that analysis of works is in the realm of musicology. Analysis of works occurs for many reasons, most especially by composers to understand the masters and their masterpieces and of course by conductors. Musicology is far more rooted in the 'science' in music (using the word science in a broad context); and my question does not venture into that territory whatsoever. My queries are straight forward, good and old fashioned analysis for very musical and compositional reasons. And, having searched exhaustively, I have found that good analyses of Debussy's music are rare. There simply aren't many good sources of analysis of either Debussy's or Ravel's music.
(As an aside - if anyone could provide a pointer to a harmonic analysis of Ravel's Daphnis and Chloe 3rd suite, I'd be very grateful!!)
I agree wholeheartedly with proposal above that what unifies Debussy's first movement of La Mer is it's atmosphere more so than any form or structure. Interestingly I recently played it to my sister who is not into classical music; and the movement did not seem unified to her at all. But she still 'bought into it' because the writing was just so good, and because it creates such a wonderful atmosphere. That puts it up to me in my own piece of course - I have to write well or my piece is going to turn out absolutely terrible :-(
Thanks for your posts - they are genuinely appreciated and I take back whole heartedly my disheartened feelings earlier in the year regarding this forum. Your time and expertise is genuinely appreciated.
Cheers,
Kevin.