The late Mica Ertegun, a celebrated tastemaker and the wife of Atlantic Records co-founder Ahmet Ertegun, is leaving behind a legacy of exquisite art, design, and decorative arts. Her collection, featuring works by Magritte, Hockney, and Picasso, is now up for auction at Christie’s, offering a glimpse into the world of a New York icon known for her impeccable style and discerning eye.