Marguerite Krull

Marguerite Krull is an American classical soprano who has had an active international performance career since the 1990s. Due to her wide vocal range, she also sings several roles traditionally performed by mezzo-sopranos. From Wikipedia (https://en.wikipedia.org/wiki/Marguer...) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/b...)