You were Harry Potter's older brother, you were the same age as the Weasley Twins so you were 17 years old and in seventh year, your little brother was 15 and in fifth year, you were "blind", you always wore black glasses with the glass being black so nobody could see your eyes.
But Harry was the only one knowing you weren't blind, you just play like you are to see how people would treat you and if they are good friends.
It was why you didn't got a date for the Yule Ball and you were the pianist of the Great Hall, everyone was dancing as you playing, you were playing 'Dance of the Knights' by Sergey Prokofiev.
At a table, Fred Weasley looked at you, impressed that you were somewhat blind but playing like a pro. George, Harry and Ron were there too. Fred then spoke.
"Is that your blind brother, Harry?"
Fred asked Harry, still looking at you as you play the old song and Harry looked up from his glass of water.
"Yeah, it is."
Harry said and Fred kept looking at you as Ron eat some chicken like a horse and George looked at a girl named Seraphina Black who was Sirius' daughter and his bestfriend but he was definetly in love.