MY INNER EAR QUARTET

What lives in the ears of a lonely boy? And why in a boy’s ear?
Every day the boy dug in the dirt and collected what he found in a cookie tin. In his notebook, he records his life and the lonely voices of the things he finds. Behind his ears lived four musicians and two shrimp that lived in a lace-shaped kairou-dou hole. They encouraged the boy by playing and dancing whenever he shed a tear. In return, he would shake a cookie tin filled with found objects. In this way, the boy grew up.
As an adult, the boy became a salesman selling hearing aids and no longer picked up lonely voices or shed tears. One day, he saw a brooch on TV news, a handmade bird brooch found in a Japanese American internment camp, and was fascinated by it. What did he find there?