The first few notes of Megapenny Music’s single, "Across the Miles," feel less like an introduction and more like a resumption. There’s a quiet confidence here, a melody that seems to pick up a conversation left hanging four decades ago—a detail about the artist’s hiatus that you can’t help but feel in the song’s DNA. Delphine Savatte’s voice enters not with a bang, but...

Helladdict’s new single, “Sudden Death,” doesn’t feel like a tribute; it feels like an exhumation. Here are six men from Santiago, all seasoned enough to know that pure fury is a young person’s game, offering instead the far more corrosive anger of experience. They resurrect the chassis of 80s thrash, all bone-raw intensity and punishing tempo, but the engine is modern, built with the...