I'm not sure specifically as I haven't read it. But generally, a novel could be about various things like the journey of a character, a complex relationship, or a struggle against some kind of adversity.
I don't know who the author of the 'last breath short story' is. There are so many short stories out there, and without more information, it's difficult to determine the author.
I'm not sure specifically as I haven't read that exact 'last breath short story'. It could be about a person's final moments, perhaps a dying character reflecting on their life, their regrets, or their most precious memories. Maybe it's about a tragic event that leads to someone taking their last breath.
It could be a continuation or alternate take on the original story. Maybe it focuses on new characters or explores uncharted aspects of the existing ones.
In some fanfictions, Ariel's death might be a tragic result of a broken heart. Maybe after Eric chose another, Ariel, in her deep despair, could take her last breath while looking at the sea that she once left for love. It's a really sad concept as she sacrificed so much for a love that didn't end well.
The length of the music on a story can be quite different. It might be only a couple of minutes for a simple scene, or it could be a continuous soundtrack for an entire chapter, lasting 10 minutes or more.