1.in future改成in the future(in future一般用在带命令口气的祈使句里)
2.learned piano改成learned to play piano
3.倒数第二句最后一行A little difficult to learn the .在最前面加It's (It's a bit difficult to play the piano well,but I think it interesting to have a try.)
另外,楼上的,你算什么英语老师啊?混饭吃啊?
总之,你写得还算不错的