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...

Listening to Caitty’s new single, "Ruined," is a bit like discovering a breathtakingly beautiful, venomous flower growing in the cracks of a city pavement. There’s an immediate, polished allure to this dark-pop track, a sleekness in its production that pulls you close before you realize the thorns are digging in. It operates in that fascinating, treacherous space where affection becomes a weapon, a territory...