According to the author, music notation is important because _________.A．it has a great ef

According to the author, music notation is important because _________.

A．it has a great effect on the music culture as more and more people are able to read it

B．it tends to standardize folk songs when it is used by folk musicians

C．it is the printed version of standardized talk music

D．it encourages people to popularize printed versions of songs