Fiona Amaka’s new single, “Cowards and Shadows,” doesn’t kick down the door; it slips the lock and vanishes into the night, leaving the chain on. There’s a particular London cool to this departure, a swagger in its disappearing act. The track's lauded Bowie-esque posture is immediately apparent, thanks in no small part to Andy Zanini's sharp, stalking guitar work. It’s less a gentle fade...

Listening to Libby Ember’s single “Alibi” is a study in strange emotional temperatures. The sound is a down-tempo, sun-dusted blanket of soft guitars and gentle synth pads, the kind of arrangement you’d put on to feel safe. But the feeling it leaves behind is a deep, architectural cold, the kind you find in the shadowed corners of an old stone church long after the...