When I was in college, Debussy’s “Footsteps in the Snow” piano prelude captivated me. I loved its ambient and deceptive simplicity, its profound moodiness and impressionistic sound palette. I sat in the Swope Hall music library, my thick and clunky headphones plugged into the turntable unit. The music spoke to me directly in a solitary language I could understand. Rob Kapilow at NPR walks us through this marvelous wonder far better than I ever could. Another in his amazing series: What Makes It Great : NPR Music.