Wow. A word puzzle led me to discover Yma Sumac, 1932-2008, a Peruvian singer with a range of at least four and a half octaves. Listen to Yma Sumac sings Queen of the Night and Clair de Lune. I’d never heard of her before.
@Miraz Now you’ve made me discover Yma Sumac. Incredible range.
Also first time I’ve heard the Queen of the Night aria in a mambo version, it surprisingly works!