Surrounding the second act of D’Albert’s opera Tiefland on the current episode of Unnatural Acts of Opera is a veritable plethora of special features. First, La Cieca takes a telephone call from an icon of stage, screen and recordings (hint: she was the surprise star of Broadway’s Hit the Sky). Then our old, old, old friend Tallulah Bankhead drops by the studio along with none other than legendary, lovely Marlene Dietrich for a Sapphic singalong. After the act, your doyenne introduces the latest installment of The Enigmas of La Cieca, and, yes, it’s another vocal identification. Take the quiz and determine your Norma-Q! Unnatural Acts of Opera.