Maestro
From Tardis Wiki, the free Doctor Who reference
Maestro was the child of the Toymaker, and, where her father embodied a game, embodied the "essence of music". Maestro fed on music, and was fanatically opposed to anyone else than themself playing it, wanting to absorb all music in the universe — including the music of the spheres — until they were the only being left.
Biography
to be added