Many thanks for the kind comments!
This is another one of the Australian hybridiser Scott Alexander. "Ethereal". From what I can see he has never registered this one. I don't know why because it is one of my favourites. Lots of buds, extended flowering period, good substance, nice surface. It has a definite presence. Not tall though (62.5cm 25"/ 15cm 6").
We should start using some more aesthetic terms for daylilies. For this one I want to say "Coherent" - an aesthetically consistent relationship of parts