Mariah's dynamics/volume control is underrated as hell.

In this [performance](https://www.youtube.com/watch?v=5fc8twBRn_s&pp=ygUoaGFyayB0aGUgaGVyYWxkIGFuZ2VscyBzaW5nIG1hcmlhaCBjYXJleQ%3D%3D). Mariah transitioned from quiet chest voice to moderately loud chest voice to belting and to falsetto with such ease that it blew my mind.