Arena Stage’s “Arena Riffs” serieswill conclude with a new music piece, “A More Perfect Union,” written by award-winning composer Rona Siddiqui. Drawing on inspiration from concept albums, her story is told through a visual audio piece that showcases the different phases of the emotional life cycle of a relationship, while at the same time exploring the larger theme of Siddiqui’s relationship to the country. The visual extended audio recording features a compilation of original songs. The overarching themes in “A More Perfect Union” center around acceptance, identity and America’s racial reckoning. 7 p.m. Free. www.arenastage.org// @arenastage