I have to play piano. Because of that audition. I just did for fun, but "That fun" causes to a 7 performence And on the rehearsal too. I've performence a lot so it wasn't very nervous. But I'm still going to performence.

=> I had to play the piano because of that audition. I just did it for fun, but "that fun" caused seven performances and on the rehearsals too. I've performed a lot so I wasn't so nervous. I'm still going to perform.