Please briefly talk about what sounds these symphonies are made of.

Boys and girls in Yaozhai are good at singing and dancing. Whenever night falls, they will sing and dance, express their praise for life with folk songs, and express the joy of harvest with dance. The small artists in the venue are not to be outdone: grasshoppers are serenading happily; Toad is playing the cello with a thick throat, and frog is singing the rough and loud Song Like with tenor; Crickets even accompanied them heartily, forming an unparalleled symphony in Kubinashi. The sound echoed in the empty Shan Ye, like the sound of spring silkworms chewing, like a breeze blowing through willows, and like wild horses running on the grassland. ......