Devoted Muse Rule Question

[Youneko]

I'm currently playing a Devoted Muse character and there is disagreement among Harmonious Strike ability in our community.

Quote:

Harmonious Strike (Su): At 2nd level, when a devoted muse hits a creature affected by her artistic flourish ability, she can spend 1 panache point to perform an especially elegant attack. She selects one of the effects below to modify this harmonious strike.

What exactly does "perform an especially elegant attack" mean? It looks like making an additional attack in the cost of 1 panache point after hitting an opponent. Or, does "performing an attack" refer to the strike already made? So Devoted Muse can modify a successful attack with the following effects?

[Derklord]

The "perform an especially elegant attack" is pure flavor text. No extra attack. The ability triggers "when a devoted muse hits", that means it's triggered after the attack roll but before the damage roll. The attack isn't resolved yet, and thus for a bonus attack, the ability would've needed to be worded differently.

Also, compared to the Precise Strike's ability to double the damage bonus for a point of panache and a swift action, or the Okayo Corsair's Ki Panache ability which allows a bonus attack for a point of panache and a swift action, Devoted Muse granting a bonus attack with bonus damage without an action cost doesn't sound in line.

[GeraintElberion]

Quote:

Harmonious Strike (Su): At 2nd level, when a devoted muse hits a creature affected by her artistic flourish ability, she can spend 1 panache point to select one of the effects below to modify this attack.

This is the boring, simple version.