Black Country, New Road is a sextet of classically trained musicians from Cambridge, England, who’ve created a unique blend of jazz, math rock, and klezmer that turned the Brixton post-rock scene on its head even as live music took an extended pause during the pandemic. After scoring a nomination for the 2021 Mercury Prize with their debut LP For the First Time, the band went through a lineup shakeup just days before the release of their second album Ants From Up There. The band retired the songs from their first two LPs and took brand new music out on tour, with vocal duties inherited by the remaining band members, resulting in the whimsical concert film and album Live at Bush Hall. They’re joined by SummerStage alums Horsegirl, a New York-via-Chicago trio that takes musical cues from ’90s alt rockers; their latest LP Phonetics On and On was produced by the ​​eccentric Welsh artist Cate Le Bon. Rounding out the bill is Sharp Pins, the lo-fi power pop solo project from Kai Slater of the post-punk group Lifeguard, who hail from the same youthful Chicago rock scene that produced Horsegirl, formed while they were still in high school.