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...

Ava Valianti represents something increasingly rare in contemporary music: genuine precocity without artifice. This Massachusetts artist, who is only fifteen years old, handles general themes with a level of emotional depth that is shocking. She shows that youth can bring out the best in complicated human experiences, rather than hiding them. "Distant," her sixth single, functions as a sonic archaeology of friendship's dissolution. The track excavates layers...