Ultan’s single, "The Tempest," erupts not so much into the room as it does through the floorboards, dragging with it the scent of wet wool and imminent confrontation. This Dublin solo musician, a cartographer of past agonies, presents an energetic rock piece that feels less like a song about history and more like a fragment of it, throbbing and urgent. The main riff careers...

SERAh's new single, "Favorite Game", which features female vocalist Summer Rona, is the kind of track that feels less like it was composed and more like it was captured—a distress signal from a beautiful, dying star. The sound here is a curious contradiction. It’s vast and cinematic, shimmering with the sort of synthesized light that promises galaxies, but its heart is small, cramped, and...