Props to link for posting the link When I came up with answers for the 2nd question, favorite music or songs, I really liked them so I wanted to share them as an article.

Snow White- All You Need Is Love by The Beatles: Simple tune with a heartfelt message and catchy melody. Reminds me a lot of "A Smile and a Song".
"All you need is love
All you need is love
All you need is love, love
Love is all you need"
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Aurora- Your Song by Elton John: A beautiful classic love song that I think is thematically close to Aurora's heart. (Once Upon A Dream: The gleam in your eyes is so familiar a gleam.)
"Anyway the thing is what I really mean
Yours are the sweetest eyes I've ever seen
And you can tell everybody this is your song
It may be quite simple but
Now that it's done
I hope you don't mind
I hope you don't mind
That I put down in words
How wonderful life is while you're in the world"
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Cinderella: Wonderwall by Oasis A bit of a gloomier song, I think it captures what Cinderella felt like just before she found her happily ever after.
"I said maybe
You're gonna be the one that saves me
And after all
You're my wonderwall"
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Belle- Somewhere Over the Rainbow by Judy Garland: So similar to Belle's song, it is the song of a small-town girl who dreams of going past anyone around her has ever gone.
"Somewhere over the rainbow way up high
There's a land that I heard of once in a lullaby
Somewhere over the rainbow skies are blue
And the dreams that you dare to dream really do come true"
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Ariel- Girls Just Want to Have Fun by Cyndi Lauper: An ultimate young girl anthem for girls who don't care about anything but what they want to do, which they deem to be "fun".
"Oh daddy dear you know you're still number one
But girls they want to have fun
Oh girls just want to have
That's all they really want
Some fun"
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Pocahontas- What a Wonderful World by Louis Armstrong: An uplifting and encouraging song that asks people to stop, think and appreciate the world around them as well as the people who inhabit it.
"I see trees of green, red roses, too,
I see them bloom, for me and you
And I think to myself
What a wonderful world.
I see skies of blue, and clouds of white,
The bright blessed day, the dark sacred night
And I think to myself
What a wonderful world."

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Anna- Come On Eileen by Dexy's Midnight Runners: If you haven't heard it, I'd suggest it. It even starts with a little bit of sophisticated violin before jumping into the quirky melodic tune and then jumping again to a more playful dance pop tune. A bit of a quirky and upbeat song, I think it musically fits Anna's personality perfectly. (Although lyrically the song does speak to youthful impulses albeit more masculine than feminine though.)
"These people round here
Wear beaten-down eyes sunk in smoke-dried faces
They're so resigned to what their fate is
But not us (no, never)
No, not us (no, never)
We are far too young and clever (remember)
Too-ra-loo-ra, too-ra-loo-rye, aye
And you'll hum this tune forever"

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Rapunzel- Please, Please, Please, Let Me Get What I Want by The Smiths: A beautiful and sweet (short) song about wanting to achieve a desired goal for the first time in one's life. I think Rapunzel would love this song musically and lyrically as it would remind her of the haunted past that she had living with Mother Gothel.
"Haven't had a dream in a long time
see, the life I've had
can make a good man bad
So for once in my life
let me get what I want
Lord knows it would be the first time
Lord knows it would be the first time"
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Merida- Smells Like Teen Spirit by Nirvana: Too many reasons! An ultimate teenage rebellion song, an ultimate societal rebellion song, basically an ultimate rebellion song. Very punk and signature of the 90s.
"It's fun to lose and to pretend
She's over bored and self assured"
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Jasmine- Blue Monday by New Order: I think this song fits Jasmine's contrast of personality and character perfectly! The song is incredibly upbeat, catchy and was a huge dance club hit but the lyrics are very sad and morose. Jasmine loves to have fun and have a good time but deep down she is a spoiled shrew. Since Jasmine seems to have a shorter attention span, I think she'd like the radio version over the album version.
"How does it feel to treat me like you do?
When you've laid your hands upon me
And told me who you are
I thought I was mistaken
I thought I heard your words
Tell me, how do I feel
Tell me now, How do I feel"

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Mulan- Hey Jude by The Beatles: A beautiful, emotional, genuine and heart-wrenching song written by Paul McCartney for John Lennon's son who was abandoned by his father to encourage him to not let this rejection ruin his life. I think Mulan would love the message of this song and I think she would personally relate to it because of how lost she felt in the beginning of her film. She felt like she'd dishonor her family and subsequently be rejected by all of society. Instead she proved herself and Shang even showed up at her house at the end. That's where "you have found her, now go and get her" would come in. For all of the war she had to go through, now it's time for her to enjoy her life and new love partner.
"Hey Jude, don't let me down
You have found her, now go and get her
Remember to let her into your heart
Then you can start to make it better"
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Elsa- Let It Be by The Beatles: A far more melodic, talented and overall superb version of Let It Go.
"And when the night is cloudy there is still a light that shines on me
Shine until tomorrow, let it be
I wake up to the sound of music, Mother Mary comes to me
Speaking words of wisdom, let it be"
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Tiana- RESPECT by Aretha Franklin: Her favorite strong song to keep Naveen in check. Tiana worked hard to earn her respect and she isn't going to give it up lightly.
"I ain't gonna do you wrong, while you're gone
Ain't gonna do you wrong (ooh) 'cause I don't want to (ooh)
All I'm askin' (ooh)
Is for a little respect when you come home (just a little bit)
Baby (just a little bit), when you get home (just a little bit)
Yeah (just a little bit)
I'm about to give you all of my money
And all I'm askin' in return, honey
Is to give me my profits
When you get home (just a, just a, just a, just a)
Yeah baby (just a, just a, just a, just a)
When you get home (just a little bit)
Yeah (just a little bit)"
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