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 John Keenan’s “Wreckage of the Past” feels like being handed the audio diary of a ghost who is not yet dead. This is an 18-song excavation of a psyche at war, made all the more intense by the knowledge that Keenan is the sole architect—producer, writer, mixer, and tormented protagonist. The whole project has the hermetically sealed, slightly feverish quality of a...