【英文说】我弹过钢琴，我最喜欢的钢琴曲是卡农。

I played the piano before,and my favorite music is Canon,I can play a little.

I have played piano before and the song I like most is "卡农“
厄，不好意思，实在不知卡农怎么说.....

I played the piano before.And my favorite music is Canon,I can play a little.

I used to play the piano and my favorite music is Canon（或者Kanon）

I had played the piano , my favorite piano song has been Kanong.

I once played the piano.My most favorite piano song is Canon