Playing the piano is very loud. Sometimes you will worry about disturbing people if you don't play well, but it's good to learn it well. Is the real king of music.

The violin is not too loud, the instrument itself is relatively small, and it plays gracefully, but its hands are really sour and it sounds good.

I recommend flute to you. The sound is not loud, even if it is played at night, it will not disturb the people. The voice is melodious, the posture is elegant, and you can also practice vital capacity. It's good, but the range and effect are not as good as those of piano and violin.

I also learned the harmonica. Sometimes when my family goes out to play, I put it in my bag. It's good to play when you are free. The voice is beautiful. I practice lung capacity.

I think it is not bad for many people to learn guitar, but if they are girls, I suggest not to learn guitar. I used to play the guitar. Its strings are hard and hard to press, and my fingers will have calluses.