Magnus- "A Sadness Runs Through Him" By The Hoosiers:

The song explains his childhood, from him growing up in an orphanage and him being on his own, to him trying to escape the void feeling of nothingness. All he could feel was depression and made anybody who laughed or picked on him pay by bringing their phobias to life. (I forgot to mention, he is non-religious) 

The line "Don't look at me with those eyes" means for him that he is ashamed of his eyes and yelling at his reflection, that's why he wears a blindfold.

https://youtu.be/rQUPwJ7JsjA

Maxwell- "Karma" By AJR: 

The song tells of Maxwell getting beat down by his bullies for not having a perfect life. He is shown just to accept the abuse until he receives the amulet of hypnotic powers and makes them do his bidding, unintentionally causing some of them to die.

The song is him arguing with the school counselor, the one person who helped him, in his mind. However, the counselor's words slowly fade from his mind and he is no longer the old edgy teenager who shared his problems with only them.

https://youtu.be/78aObomjeVQ

Abela- "Dollhouse" By  Melanie Martinez:

The song means that no matter what fantasy world she wants to live in, she can't escape the thought of being abused. Her parents never did but she has been living through this lie that nobody wants her and her creations of life become feral.

hence the lyric "One day they'll see what goes down in the kitchen"

https://youtu.be/BQtv2gkP0io

Josephine- "Death of a Bachelor(ette)" By Panic! At The Disco

The tune is set for a singer, which Josephine hid as, to protect the secret of her powers. She sang for a bar when she met the love of her life. The ballad is for her deceased fiancé, who died by officials to protect her even though he knew she was a "monster".

The song is how they loved each other and when he passed away, a bit of her died with him and all she wants is her happily ever after with him as her husband.

https://youtu.be/Fl2OvKxMA0s

# 5632 (Ethan)- "The Mind Electric" By Miracle Music (Tally Hall)

This song goes to depth on what happened to Ethan and why they are the way they are. Explaining the life-changing experiment that made them the humanoid, immortal, freak they are today. All because they learned something they shouldn't have. While all the chemicals rush into their veins, they have a crisis on life and their existence while trying to keep them self

their last attempt to yell for help from the man who did this to them before they become a full monster is the lyric :

"Doctor, I can't tell if I'm not me!"

(this song also can work for Galaxy  but it fits them more)

https://youtu.be/9CIUrIZ7Omc

The Toxicologist (Charon):  "Come Little Children" By Erutan

The leader of the Purple Bloods carefully picked the magic users who have been wronged and tries to give them a second chance, in return for their loyalty. She sees potential but also sees that they all have been mistreated. She is strict with them but she sees little pieces of herself whenever they fight or try to get along with each other. that doesn't mean she won't single handily kill anybody who pushes her to the limit

https://youtu.be/3eL6I2xS6zk

Helaxy- "Curses" By The Crane Wives

Despite being an upbeat song, Helaxy sways around striking fear into Galaxy with her backup dancers Hels!Rave and Ruby as well as the other Hels!Flames singing with her. They are sick of the flames repressing their feelings because every negative feeling they push down, it goes straight to Helaxy and the other Hels!Flames. Helaxy represents every feeling that Galaxy has except happiness and joy. She is always in mental pain but doesn't show it.

"Make a mercy out of me" is another way of them saying "Why should we spare them?"

She snaps at Galaxy, showing an emotion that slipped out, and sings the lyric:

 "Ashes Ashes, Dust to Dust, Tell me I am good enough"

https://youtu.be/8Gopg80VXwc

(Look, man, this is my favorite song! ^^^)