The Music Genius Young Lady is Preparing for Disownment

I was reincarnated as the fake youngest daughter of the Duke’s family.
In the future, when it’s discovered that I’m a fake daughter, I’ll be kicked out of the Duke’s household and, as an extra, I’m destined to be executed for attempting to assassinate the Crown Prince.
To avoid such a miserable end, and to save some living expenses in case I’m kicked out later,
I planned to devote myself entirely to music and also fulfill the dreams I couldn’t achieve in my previous life…
“This piece will never be completed.”
“……”
“Not without you.”
…Somehow, the Crown Prince can’t seem to leave me alone.
And then another problem arose.
My grandfather, who used to despise me, now says,
“Please, eat something and compose your music!”
My father, who seems to have learned parenting from books, says,
“Pick the room you like. I’ve lightly prepared 50 options referencing Monthly Lady.”
My eldest brother, who used to treat me like an invisible person, says,
“Are you okay? It’s not just your body that gets hurt. Your heart gets wounded too.”
My second brother, who considered me a stain on the Duke’s family, says,
“Don’t sacrifice yourself for the family. Live for yourself.”
…They all want me by their side?
Ah, what a problem.
I just wanted to devote myself to music, so how did it end up like this?