Attempts to resolve the Quandary:
6
Cecilia hoped that her crepuscular melodizing would neutralize her husband's acrimony and awaken the innocent soul she believed was trapped inside that hungover walrus of a man, but her chirpy aubade was only a Maginot line against his grumpiness, eliciting no joy, just his groggy imprecations and a show of tusks. (by Rudi)
5
It was clear that wealth and doormen were an evanescent Maginot line against the seductive aubade of commercial lovers who gathered in the early light just off Sutton Place in hope of eliciting an illicit touch or favor and succeeded, more often than not, in drawing only the vile imprecations of some of the wealthiest residents in Manhattan. (by gumo420)
4
I was pissed as a newt
So I said 'Cheers, old fruit,
Must get back to the trouble and strife';
Well she heard me arrive
As I rolled up the drive
And was there at the door with a knife
(On my life!) . . .
I said 'Greetings, my dear,
I'm not pissed have no fear,
Let us join in a chirpy aubade';
But the song that she knew
Fairly curdled the dew
Causing me to retreat, yet unscarred
(Breathing hard!) . . .
Then with vile imprecation
She woke up the nation
And swore that she'd see me in hell
Before sharing her bed
With a lousy dickhead,
For she wasn't best pleased, I could tell
(Ritournelle!) . . .
I said 'No more of that
You seductive old bat',
But elicited nought but a sign
That my claim on her frame
Set her parts all aflame -
So I broke through her Maginot line
(That's her shrine!). (by Bud Myte)
3
I think perhaps an aubade is not simply a song at daybreak, but more particularly a song about separation at daybreak, as in Philip Larkin's poem "Aubade" in which the poet courageously eschews anger and imprecation and reflects quietly and most poignantly on his "dread of dying", which he does as the "curtain edges. . .grow light", which places us in that liminal state between light and dark, suggesting life and death, and makes of the poem a sort of Maginot Line, eliciting a feeling of temporary defense against the "sure extinction that we travel to". (by cusheamus)
2
It began to go bad, when the clamoring aubade of the traffic on Main Street and Vine elicited imprecation, cursing this car nation - such flowery invective a mere Maginot line. (by tree)
1
When she woke, Isabella's aubade was not her usual trill comparable to the lark on the morn but a strident imprecation against her own folly as the growing light helped elicit her realization that she was not alone and the man laying siege last evening had, indeed, breached the Maginot Line of Grandmother's chaperonage. (by Ceathair Focail)

7
The Sun's rays gently but surely crossed the Maginot line of the night, eliciting joy and warmth and eliminating the imprecation of darkness, as the cuckoo heralded the dawn with her sweet aubade. (by QuaQua)