Grey Witch's stage turns into a den of gothic bluegrass when The Pentagram String Band rolls through Henderson. Hailing from Kansas City, this band twists traditional string-band instrumentation into something darker—banjo and fiddle lines that bend toward thrash metal and punk, with lyrics soaked in death, misery, and other unholy preoccupations. It's bluegrass for people who find graveyards more comforting than church pews.

Sharing the bill is Florida's Swamp Rats, who bring their own strain of haunted folk to the night. Clawhammer banjo picking gets fused with punk-driven rhythm and vocals that swing between gritty and unexpectedly tender, creating a sound some fans describe as happily haunted. Riflemen String Band rounds out the lineup, adding another layer of string-driven grit to an evening that leans heavy on Americana's weirder, more feral edges.

Expect a room full of acoustic instruments pushed to their limits—fast picking, close harmonies, and a general disregard for bluegrass's polite reputation. This is 21+ and doors open early, giving plenty of time to grab a slice from the venue's Detroit-style pizza menu before the murder ballads start.