Aria’s hair reminds me of Teto’s hair.  

I suspect Adagio’s hair is similar to Pinkie’s in its poofy shape memory. That ponytail has maybe ten more seconds of life before it bursts into her usual Tribble puff.

wow, super cute

Vice Versa?

How about some obscure or less popular choices:
 
Drill hair (or Oujo curls, whichever you prefer) + Class, Wealth and Taste + Badass =  
 
Petra Johanna Lagerkvist from all-girl fighting game series Arcana Heart, particularly 2 and 3 and their respective updated re-releases.  
Her mode of combat is somewhat similar to that of BlazBlue’s Noel Vermillion.
 
Her Arcana (summon/familiar/assist character) behind her is Zillael, the Arcana of Holiness. Just look at that horse.
 
Also, she is TTGL’s Yoko Littner by way of Marina Inoue, hence being involved in one of the voice cast of a certain Super Mecha anime about drills, DRILLS and MORE DRILLS!

@Roy-of-Asturia  
 
ALL HAIL THE QUEEN OF HAIR CURLIES

 
Sernia Iori Flameheart from Ladies vs. Butlers. Bonus points for her hair actually spinning and making drill noises when she’s angry.

Shouldn’t Adagio’s hair be longer, considering how poofy it was?

that must have taken HOURS to get that poof straightened

Adagio you kinda look like Sirenix!Bloom and Icy now.

Dat paper texture overlay. I took one look at this and was convinced The-Butch-X drew it, but then I saw it was another artist. Really looks like his style.

…Sonata…you might want to give Adagio her poof back. I don’t think she likes anyone messing with her hair.

I’d like to see Sonata with a giant poof of hair like Adagio has.

@Prof.NightJack  
Let’s keep drilling through the Internet underground, for I have found  
 
_{Shiina “Misha” Mikado from Katawa Shoujo}

@Roy-of-Asturia  
Also Mami Tomoe from Madoka Magica.  

@Prof.NightJack  
She looks cute… if only she wasn’t so blackhearted.

@Roy-of-Asturia  
As I said, it’s known as “drill hair” and a number of characters have it, and it’s not just ones of class, wealth, and so on.  
Case in point, Domino form Mewtwo Returns.  

@Prof.NightJack  
Ah, I see.

@Background Pony #CC27  
Anonymous posting by accident. I should be credited instead.

@Red-Supernova  
@Prof.NightJack
 
Female anime characters of class, wealth and taste tend to be designed with such curls.
 
Aria Blaze is slowly becoming Rarity, and needs to have a noblewoman’s laugh due to that hairdo.
 
 
A non-video game example of those Princess/Oujo curls:  
 
_{Rose Bernstein, daughter of Rugal Bernstein}  
She is Diamond Tiara and Silver Spoon combined (years before those two debuted), and is a pacifist.
 
 
As for Adagio Dazzle:  

The anime is strong with these ones

Why is it I always find Adagio looks betting with other hairstyles?
 
 
@Red-Supernova  
It’s the “drill hair” that a number of anime characters have, so it may not be to specific.

Man Adaigo And Aria Never Catch A Break From Sonata’s Antics Don’t They?

They’re actually not that bad. Who knew Sonata’s special talent was in hair.
 
 
Not gonna lie though. The cleavage made things a bit distracting. (I’m a guy).

I prefer Adagio’s giant puffy hair but this is a nice alternate style for her.
 
I have a feeling that Aria’s new hairstyle is a reference to another anime character but I have no idea who.