Consider the equinox. Sun directly overhead, day time equal to night time. Things in balance.
What perfume to wear for such an occasion? Do we bring in those which continue a balance throughout their development? Or which turn equally from one extreme to another, as our day will turn to our night today?
Balanced presentation throughout: Lancome Magie Noire, which continues a steady if subdued rose underneath is animalistic veneer. Armani Pierre de Lune, which keeps the violet and lightly metallic whiff of green going throughout. L'Artisan Fleur de Narcisse, which keeps the tobacco and hay going against narcissus and leather throughout the run.
Turn arounds: L'Artisan Poivre Piquant, which starts as a sharp peppery single note on me, and transitions into a creamy blended skin scent. If you've been reading for a while, you already know that SIP Black Rosette goes here. Molinard Habanita, which continually bounces back and forth between gently fruity floral and tobacco on me--which I guess means multiple turn arounds, so it is good for a few revolutions.
I'm not ready to vote one approach more correct than the other; after all, it's important to maintain a balanced view of these things. But if you've got additions to either list, I'm all--erm, half--ears.