Frank Zappa fit naturally at @armadilloworldheadquarters , where the rule was simple: if it was real, it belonged. In the 1970s, Zappa and the Mothers of Invention played the Armadillo several times, dropping sharp, complex rock into a room packed with hippies, bikers, students, and country diehards. The crowd leaned in. Some shows were recorded, with performances later appearing on live releases and archival projects, reinforcing the Armadillo’s reputation as a place where Texas counterculture