Hit shuffle on Milk Teeth's debut album and you'll be blasted by sludgy pop-punk one moment, cinematic post-hardcore the next, before you wind up in a wild, grungy noise-rock squall. It's all tied together by bassist Becky Blomfield's disaffected alto, which brings to mind Shirley Manson on a not-so-sunny day. "Swear Jar (Again)," which also features guitarist Josh Bannister on backing vocals — he's since left the group — is the Bristol band in Weezer bummer mode, with chunky, Big Muff'd guitars played at a slo-mo headbanger's pace and heavily worn vulnerability.

"This is one of the first tracks we ever wrote as a band, and one that's never left our set list," Blomfield writes. "We are super excited for you to hear it on NPR."

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