题目内容：

英语课上，老师要求同桌同学相互修改作文。假设以下书信为你同桌所写，请你对其进行修改。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1、每处错误及其修改均仅限一词；

2、只允许修改10处，多者（从第11处起）不计分。

Music is the international language．The songs sung or playing by instruments are beautiful to people everywhere. Popular music in America is that every student likes. Students carry small radios with earphones, but listen to music before class, after class, and at lunch. There are other kinds music that are important to Americans. One is called folk music, it tells stories about common life of Americans. Another is called western or country music, started by cowboys whom would sing to the cows they were watching out. Today, any music about the love between a country boy and his girl friend are called western or country music.