Let’s be very clear: This is a killer twin-bill of American bands doing interesting things with and to punk rock and kicking ass along the way. Philly upstarts Sheer Mag are punks at heart, but their music struts like leather-clad classic rock, and singer Tina Halladay sounds like a soul singer spitting nails. Live, they are a relentless barrage of guitars, fist pumps, and sweat. And Ceremony, from the Bay Area, started out as a pretty straightforward hardcore band with obvious ambition, then blossomed into moody and beautiful post-punk shapeshifters on their most recent album, 2015’s The L-Shaped Man. As a live act, they turn frustration and resentment into a skull-crushing wall of sound. by Ben Salmon