One possible theme could be Batman using his singing as a form of distraction during a fight. Maybe his singing has some sort of hypnotic effect on his enemies in the bmww world.
Perhaps a theme could be Batman's singing as a way to express his inner emotions that he usually keeps hidden. In the fanfic, it could be a new way to explore his character depth. He might sing about his loneliness or his determination to protect Gotham. And this singing could also be related to some sort of magical or special ability in the bmww setting.
Another theme could revolve around Batman's singing being a part of a larger performance or event in the bmww universe. For example, he could be forced to sing in a villain - led show, and his singing then becomes a tool for either his escape or a way to turn the situation around. It could also be a theme where his singing unites the people of Gotham in a unique way, bringing out their hope and courage.
They could be the young, troubled boys in Gotham that Batman is trying to save. He sees potential in them and by singing to them, he is reaching out on a more personal level. Maybe they are part of a group he's mentoring or just random kids he's trying to make a positive impact on.
Well, I don't have a ready - made 'bmww batman singing fanfic' at hand. However, another option is to use search engines. Type in the exact phrase 'bmww batman singing fanfic' and see what comes up. Sometimes, you might have to dig a little deeper through the search results, but it could lead you to the fanfic you're looking for.
Maybe Batman is singing to his sidekicks like Robin to boost their morale. He could be using it as a way to comfort them after a tough battle or a difficult situation in Gotham.
The theme of support could be prominent. Videl could support Gohan's singing dreams, and in return, Gohan could support Videl in other aspects of her life. It could also be a theme of transformation. Gohan's singing might transform Videl's view of him, and vice versa, as they engage in this musical journey together.
One possible plot could be that Chat Noir uses his singing to charm an enemy. He might sing a song that has some sort of magical effect, putting the bad guy in a trance or making them feel emotions that stop them from attacking.
One common theme could be self - discovery. Maybe Cynder discovers a new side of herself through singing. Another theme might be using singing as a form of communication when words fail. It could also be about Cynder's journey to become a better singer, facing challenges and growing along the way.
One possible theme could be self - sacrifice. Batman might have a death wish because he feels that giving his life is the ultimate way to protect Gotham. Another theme could be depression and burnout. After years of fighting crime, he may be so worn down that he no longer values his own life.
One possible theme could be a comical take on Batman in a baby - like or vulnerable state. It might be about how the other characters in the Batman universe react to this strange situation.
One possible plot could be that Ben is in a spooky old house and hears singing coming from an unknown source. He then tries to find out who or what is making the sound, and it could lead him on a mysterious adventure.
One possible theme could be legacy. Given that it's about the Batman family, the idea of passing on the mantle of protecting Gotham from one generation to another could be a strong theme.