A piece aired a couple of months ago on NPR about Steely Dan’s legendary sound engineer, Roger Nichols, who had just passed away from cancer. Michele Norris interviewed Donald Fagen about Nichols and his storied inventiveness, including the tale of Walter Becker and Fagen struggling with a drum track for Gaucho’s “Hey Nineteen” and challenging Nichols to come up with a mechanized drum system to outline the beat. Which, in a few weeks’ time, Nichols did, and the dry, relaxed-but-airtight snare line remains intact on the tune 30 years later.