Growing up changes the meaning of a late night. The Mack Brothers seize that feeling on “Sleepless in Seattle,” an indie rock single from Philadelphia brothers John and Matthew Mackara. The title comes from John’s own phrase for those anxious, can’t-switch-off hours, and the song’s stated concern is the friction between the past and the present. That premise hits hard because it is familiar without being...

Vancouver’s 20-year-old mood-architect 13illy just dropped a new single, "NOTHING W/O YOU," that captures the exact shade of blue your bedroom ceiling takes on at 3 AM. It operates on a compelling sonic paradox. He lays down a dreamy, melancholic loop that continuously circles your head, eventually anchoring it to a cavernous low-end pulse and sharp, fast-paced trap snaps. It is an infectious, bouncy...