Which instruments need notation and which ones need staff?

Correct the friends upstairs, it's not a question of standard … it's a question of music. Western musical instruments must use staff, while China folk musical instruments use simple staff. This is how the score of an instrument is printed. Western music is like violin, piano, electronic organ, flute is a staff and guitar is a staff. Folk music such as bamboo flute, flute, flute, pipa, guzheng, guqin and cucurbit silk. This is a simple score.