9日の話題
明日ライブをする。そのバンドでは主に昔の民話を歌う。そのための衣装を皆同じ布で作らなくてはならなくて、ついさっき終えたところだ。
縫い物も好きだし、編み物も好きだ。別に内向的なわけではないが、小学生の頃、休み時間は一人でオルガンを弾いていた。5歳の時にオルガンを二年間だけ習ったが、引越しした為やめた。すごく続けたかった。ピアノをまた習えたのは14歳の時だ。22歳までやったかな。プロのピアニストになりたかったが、ピアノはそこまで上手くならなかった。

英作文
I'm gonna have a gig tomorrow. We mainly sing a folk songs from the old days. We use the same cloth and each of us is going to make his or her own outfit for this gig. I've just finished.
I like sewing and knitting. I don't think I'm introverted. But when I was in the grade scool, during the every break I play the organ alone.
I started to take a organ lesson when I was 5. But it lasted only for 2 years. Because I moved to a different place.So I had to quit. I wanted to keep taking the lessons so bad.
I started to take a piano lesson again, when I was 14.
It lasted until 22 years old. I wanted to be a proffessional pianist.But I wasn't good enough.

正解
I'm gonna have a gig tomorrow. We mainly sing fork songs from the old days. We use the same cloth and each of us is going to make his or her own outfit for this gig. I've just finished it.
I liked sewing and knitting. Also when I was in the grade school, I liked to do things indoor. During the every break,I played the organ alone.
I started to take an organ lesson when I was 5. But it lasted only for 2 years. Because I moved to a different place. So I had to quit. I wanted to keep taking the lessons so bad.
Then I started to take a piano lesson again when I was 14. It lasted until I was 22 years old. I wanted to be a proffessional pianist. But I wasn't good enough.

A:cloth 布、生地　clothes 洋服

I've just finished.→I've just finished it.

インドア＝内向的、にはならないので、I don't think I'm introverted.という文章自体不要。I liked to do things indoor.にして繋げる。

a organ→an organ

接続詞Thenで繋ぐ。

until 22 years old→until I was 22 years old