Pectus carinatum Essays

Introduction There was marked the rise of some virtuoso male singer in the baroque period which has a specific name: castrato. It was common of a male had been castrated before puberty for being a singer in Italy from 1600 to 1800. Some of them were famous and favored by many nobleman and received the highest fees of any musicians (Kamien, 2016), but they need to bear a pain surgery, incomplete body, arduous school life for music training. Therefore, the questions arise here and hope to find out