This is not the official and know 'UnderBeats.' This is my friend Beats's AU 'UnderTunes.'

Characters:

Beats Vocalman

The newest member and the first one you meet. Not much is known about him other than that he spent most of his life alone and that he tends to keep to himself. Of course, this is because he does have secrets to keep.

Age- 25 years
Gender- Male
Sings at- The Ruins
Ability- To copy other's stats and attacks
Hobby- Cooking
Fun Fact- He's an arachnophobic so he and Muffet don't get along, hates fighting and hugging for some reason
Stats- 5 ATK 0 DEF

Buzz Verstein

The newest member before Beats, what he lacks in complete skill he makes up with hard work. He's been living in Snowdin all his life, he's a bit of a jock and enjoys to remain active. He's been known to run laps in the early mornings.

Age- 18 years
Gender- Male
Sings at- Snowdin
Ability- Electrical attacks
Hobby- Basketball
Fun Fact- The whole jock thing started off as a means to get warm, but then he started to enjoy it. He is multilingual
Stats- 30 ATK 30 DEF

Melody Rocker

The only female of the group, she joined the Voicetunes a few years before Buzz. She's by far the nicest member, but of course she can also put up a fight when threatened. However it's hard to tell if she is truly happy or just trying to ignore a pain from her past.

Age- 23 years
Gender- Female
Sings at- Waterfall
Ability- Creates sound orbs
Hobby- Wrestling
Fun Fact- Although she's usually stationed in Waterfall, she works in Hotland whenever Pulse is unable to work
Stats- 30 ATK 40 DEF

Pulse Rapson

He was the first person to join the new Voicetunes when it was started. However, he was more interested in working the sound for Mettaton's show than the underground. Not only that but he's also incredibly belligerent, having a tendency to start fights. Nevertheless, he's still skilled at his job and focused enough to do Hotland.

Age- 30 years
Gender- Male
Sings at- Hotland
Ability- To shout out powerful sound waves
Hobby- Skateboarding and dancing
Fun Fact- Despite his rough and tumble personality, he's still the most qualified to be a babysitter
Stats- 40 ATK 30 DEF

Bop Songworth

The founder of the new Voicetunes, he now leads the group of speakerheads into doing their daily tasks. He himself shows practically no emotion and often tends to make choices that aren't very enjoyable, but are necessary. He often does his singing from a desk in the balcony, because the band has more paperwork than you'd think.

Age- 24 years
Gender- Male
Sings at- New Home
Ability- Create Sound bubbles that explode on impact
Hobby- Nothing
Fun Fact- Was once a lot happier, but that changed when his dad disappeared
Stats- 20 ATK 20 DEF

Tune Songworth

He was the most capable and skilled speakerhead alive, able to play music for the entire underground all by himself while still being able to raise his son. There was just one problem, he was so busy he couldn't take care of himself all that well so he nearly dropped dead with exhaustion. Luckily Alphys was able to wake him up but.....you know the story. Now he's amalgamating in the true lab while Asgore is more lenient with the new Voicetunes so that doesn't happen again.

Age- 54 years
Gender- Male
Sings at- True Lab
Ability- Amalgamated Bop attacks
Hobby- TV
Fun Fact- He was once a lot more focused on his job, but nowadays learned to relax once in a while
Stats- ????

Dust Eating Monster

It's an ancient beast known and feared for killing monsters and eating their dust. The legend goes back for several centuries showing him as vicious, merciless, and blood thirsty. In actuality, he's just a tired old monster who's ready for it to end.

Age- about 25 Centuries
Gender- ???
Sings at- N/A
Ability- Uses claws, teeth, tentacles, and spikes
Hobby- Hunting (assumingely)
Fun Fact- It has 0 HP, but also filled with determination
Stats- 200 ATK 0 DEF

Basically what they do ((Said by Beats Vocalman)):
"I'm one of the monsters who normally goes through the underground unnoticed, playing music to prevent monsters from being bored. I'm from one of the universes where me and my group travels the underground as just another monster."

Scenarios:
1. You are handing out with Beats and his friend when tow of them break out in a fight and Beats becomes D.E.M. ((or the most OP thing to exist))
2. Use your imagination