UK singer Sampha, who is best known for his work on SBTRKT's self-titled debut, has his way with Chairlift's "Sidewalk Safari," injecting space into the track while pitching Caroline Polachek's voice up, down, and back up again and muddling the melody. It's the musical equivalent of trying to look at solid figure through a kaleidoscope. Maybe I'm overreaching, but it ...