“The Amasong Chorus: Singing Out” profiles the “premier” lesbian-feminist chorus in Champaign-Urbana, Ill., an award-winning ensemble founded by Kristina Boerger, a “musical activist” who's seen molding Amasong into an award-winning ensemble during the 1990s. Boerger's also molding it into a community. Says one singer: “it's like your church, in a way.”