Listening to Elena C. Lockleis’s new single, “Mind - Vs. - Heart,” feels like witnessing a civil war fought entirely within a single nervous system. The sound is an intimate knot of pop architecture, the kind Julia Michaels patents in her sleep, where a confession arrives not as a ballad but as a skittish, rhythm-driven pulse. You feel the frantic heartbeat right there in...

Within the first minute of Fedstar's new single "Treat Me Right," it is clear that a great deal of effort was put into the creation of the song. The title of the song suggests that once she is your companion, you are obligated to behave appropriately with her. Who wouldn't want access to the very best treatment? The lyrics of the song appear to be a...