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...

Lincoln’s Future Theory have distilled a uniquely modern affliction into their new single, "Reality Buzz." It’s the specific sound of a cheap energy drink fizzing next to an overdue bill. A nervous, propulsive energy runs through the track, a driving alt-rock current that feels like trying to walk in a straight line while the world tilts on its axis. The guitars, steeped in a...