The feminine mystique doesn’t get much more mysterious than this. Bianca and Sierra Casady, estranged half-Cherokee sisters who began a new life together two years ago, are open secrets: they lay out all the information you could need on Noah’s Ark (Touch and Go), the tender milkmaid melodies adorned with tattered, lacy frills of toy piano, glockenspiel, and even samples of meowing cats or dripping water, but it’s still impossible to figure them out. With a hollow goo-goo whisper or a brittle bluesy wail, Bianca tears the delicate fabric of the music (she’s not angry; it’s just her style) while Sienna, who trained as an operatic soprano in Paris, does the mending. The floaty, surreal songs are born into a world where wind chimes, music boxes, drum machines, barnyard animals, rain-forest shamans, and French rappers can have a tea party together in the moonlight. They take little breaks to sigh and moan quietly to themselves, then drift away from you before you’re ready to let go. Antony & the Johnsons headline. Tue 10/4, 7:30 PM, Park West, 322 W. Armitage, 773-929-5959 or 312-559-1212, $15. All ages.

Art accompanying story in printed newspaper (not available in this archive): photo/Shawna Enyart.