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...

Adriana Spuria’s new single, “Stone,” presents itself with the polished feel of a perfect skipping-stone, but listening closely reveals it has the curious weight of a fossil in your palm. Spuria sings of a very specific, modern affliction: the slow petrification of the heart. This is a loneliness born not from solitude, but from an inability to feel for anyone else, an insulation that...