title: Castrati singers and the lost "cords".
mesh_terms: D002369:Castration / Q000266:history*; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007558:Italy; D008297:Male; D009146:Music / Q000266:history*