This morning, children from an elementary school grade 4 came to our factory cheerful, xiao li from our beauty always lead, you listen to the first performed by the frontline employees of jiangsu dongfang instrument harmonica concert, in wanting more of the children, they came to the largest harmonica museum, inside decorated with all kinds of the harmonica, many years ago, books, brochures, and so on, Of course, their latest was a robot in a museum, then they visited the harmonica production workshop, and finally they made their own harmonica and learned to play the first song .