The Lemonheads’ membership roll reads like a Mormon genealogy, and the styles the band has embraced over the past 20 years defy categorization. Through it all — from punk yelps and jangle-pop to classic-sounding rock — the one constant has been Evan Dando, a drug-glazed cover boy who’s also a somewhat triumphant survivor. The Lemonheads’ new album, Varshons, was inspired by the Butthole Surfers’ Gibby Haynes, who sent mixtapes to Dando filled with rootsy folk, fuzzy psych-rock, electro-pop, murder ballads and a duet with Liv Tyler on Leonard Cohen’s “Hey, That’s No Way to Say Goodbye.” Even by Dando’s standards, Varshons is the Lemonheads at their scattershot best. Filmstrip opens at 7:30 p.m. at the Grog Shop (2785 Euclid Heights Blvd., Cleveland Hts., 216.321.5588). Tickets: $15. — Brian Baker