You don't have to wait long for a signature Sleater-Kinney moment in the band's Tiny Desk (home) concert. Over the first half of the title track to Path of Wellness, Corin Tucker and Carrie Brownstein sing of human frailty and self-improvement, vibrating with low notes of disgust. Then Brownstein shoots Tucker a knowing smile as they sing, "You could never love me enough," and the pair, who have been making music together for nearly 30 years, start to unwind things: Brownstein hisses "I am on a path of wellness" through gritted teeth before ripping into a four-note riff that feels like it's pulling your guts out; Tucker sets her voice at maybe 75 percent howl capacity to sing "I feel like I'm unknown" and Brownstein still has to raise a hand to steady herself against the force. She can't stop grinning.