do not know if it is been stated in this context before but the VALSES NOBLES ET SENTIMENTALES which makes up the first part of Balanchine's LA VALSE was choreographed separately by Ashton - in general those who saw this earlier work and who admire Ashton, say it was fine work indeed. photos of it in David Vaughan's and other books indicate a moody work more 'related' to the moods of Balanchine's ba