After the calls stop, the hardest part of a breakup is rarely being alone. It is the administrative problem of feeling: how does someone proceed after an old future disappears? Astian’s new single “How” holds that question there. It does not rush to fill it with a lesson, confession, or the sort of gleaming finality pop often prefers. Astian approaches the aftermath through a playful, stripped-back...

Janet Devlin’s new single, “Houston,” arrives as a gleeful contradiction, a two-stepping Americana anthem for the sovereign state of one. It has all the upbeat, country-rock fixings for a roadside sing-along, yet its heart is miles away, floating in a self-imposed, wonderfully stubborn vacuum. The track opens, and you’re ready for a communal good time; instead, you find yourself at a party where the...