“Molly Nilsson’s best songs to date have made simple, vague sentiments feel personal and urgent. Over synthesizer lines that float like snowdrifts, she sings about the simple comforts of staring up at a dark sky or the bittersweet nostalgia of vintage technology. Her new single, “Not Today Satan,” finds her working in a decidedly more direct mode. She throws barbs at “small men who act so tall,” th”