Ida + Babe the Blue Ox + The Mommyheads + Beekeeper + Sportsman's Paradise

Several veteran indie-rock crews—including the blissfully bummed Ida and the dissonant, quirked-out Babe the Blue Ox—unite for an annual benefit gig in honor of their mutual friend and collaborator Jan Kotik, who died of cancer in 2007. All proceeds go to Kotik's family, and fans of these acts will be happy to know that full-album sets are on the menu.