Music Meister

"I told you when we first met, it was to teach all of you a lesson. Because I see everything and I saw two people, with two broken hearts."

- Music Meister

"Music Meister" is an extra-dimensional being with unexplained supernatural powers and an author in a possible future. He claims to originate from somewhere outside of the normal universes of the multiverse, which he describes as being beyond the comprehension of ordinary humans.

Biography
Music Meister allowed himself to be captured by the D.E.O. Once inside, spotting Supergirl, he hypnotized her, broke free of his handcuffs and used Kara's inter-dimensional extrapolator to travel to Earth One in search of "the fastest man alive".

He invaded S.T.A.R. Labs and was confronted by The Flash. He revealed that he knew Barry's name and that wasn't all he knew. Wally then arrived and he said that he was happy to meet him as well. Wally asked what he wanted with Kara and he said it was the same thing he wanted with the two speedsters, to teach them a lesson. He then quickly attacked Wally and threw him off and mocked the young speedster. Barry tried to attack but Music Meister caught him and then quickly hypnotized him.

He found himself in Kara and Barry's joint hallucination and explained that they were both trapped in their own heads while he was on the outside and ready to unleash himself upon Central City. He told them that they were in a movie musical and if they wanted to leave and try and stop him, they would need to follow the script. He also warned them that if they died in there, they died out in the real world. He then performed a musical score for the two of them to help explain that they had to play along with the plot of the musical if they wanted to free themselves.

Afterwards, possessed with both Kara and Barry's powers, he attempted to rob a bank but was confronted by Vibe, Kid Flash, and the Martian Manhunter. Wally was the first to challenge him and he said that Wally was still too scared after his experience in the Speed Force. Wally then charged for him but Music Meister used Barry's speed and then later Kara's flight to dodge his attempts. Cisco then transported J'onn to attack him from above while Wally attacked him from below. They managed to knock him out and then he was detained at S.T.A.R. Labs. In the cell, he was confronted by both Iris and Mon-El who wanted him to reverse what he had done to both Barry and Kara. However, he claimed that his powers didn't work that way and the only ones that could free them were themselves. He also claimed that the two of them could save them, if they truly did love them enough.

He escaped after Kara and Barry broke free from his illusion, claiming that his lesson had been taught. He explained that he saw the pain that was in both of their hearts and he always rooted for heroes. He wanted Barry and Kara to learn that though they were superheroes and saved people, when it came to love, it meant allowing themselves to be saved once in a while. He then vanished to teach his "lessons" to others.

Possible future
In a possible future, on May 23, 2017, it was announced on Earth One's Channel 52 that Music Meister had gained a 6-figure book deal.

Personality
Music Meister can have a sense of humor when toying with his enemies especially to Wally West and even calling the latter scared. Despite his initially hostile actions, he claims that he believes in the power of love and was rooting for the good guys to win, and simply wanted to teach them a lesson.

Powers

 * Clairvoyance/Multiversal Awareness/Partial Omniscience: Claiming to be aware of everything, Music Meister has indeed shown to have in-depth knowledge of various places and people from across the multiverse: Despite coming from an unknown reality he was aware of the existence of Earth One and Earth Thirty Eight, along with detailed knowledge about the secret identities and personal lives of superheroes. He knew about the particular romantic problems facing Kara Danvers and Barry Allen, and about the experiences Wally West had during his imprisonment in the Speed Force. There do seem to be some limits to his supposed omniscience, as he doesn't know what other people are thinking and can't predict what choices they'll make or how events will turn out. Because of this, Kid Flash and Martian Manhunter were able to catch him off guard.
 * Hypnotism: Music Meister has the ability to hypnotize anyone he looks at, sending them into a dream world. He is also able to enter the dreams and manipulate the dream world as he sees fit, including the "free will" of the people trapped within it. However, he cannot make them wake up from this dream; they have to find their own way out.
 * Power absorption: Anyone under the effects of his hypnosis becomes energy-linked to him, enabling him to gradually steal their powers for his own usage. He is also shown able to contain and draw power from multiple targets at once (i.e. Supergirl and The Flash).
 * Supergirl's powers: While linked to Supergirl, Music Meister had her superhuman durability, strength, speed, heat vision, and flight-based abilities.
 * The Flash's powers: While connected to The Flash, Music Meister also had his Speed Force connection, further enhancing his speed.
 * Teleportation: Music Meister is able to teleport, enabling him to easily escape a meta-human cell. To observers, it appears as if he becomes translucent and fades out of existence. However, he apparently cannot travel between different universes in the multiverse on his own, requiring the usage of Kara's inter-dimensional extrapolator to do so.

Abilities

 * Keen intellect: Music Meister is shown to be a clever and crafty individual. Feigning capture, he was able to get close enough to Supergirl to use his powers on her and use her inter-dimensional extrapolator to escape to Earth One.
 * Escape artistry: Music Meister has a talent for sleight-of-hand, able to easily escape from high-tech cuffs.
 * Singing: In addition to his love of music, Music Meister has shown a talent for singing himself.

Trivia

 * His abilities of clairvoyance and teleportation, extra-multiversal origin, and outfit show similarities to Mxyzptlk.

Behind the scenes

 * Music Meister originated as a villain in an episode of Batman: The Brave and the Bold voiced by Neil Patrick Harris, who could hypnotize his enemies by creating a pitch so high that it would send them into song and dance.