Once a year, esteemed Southern literary magazine Oxford American publishes a special music issue focusing on a particular state’s legacies and contributions. This year is Georgia’s time to shine, and the publication is holding a reading at Avid Bookshop at 6:30 p.m. Wednesday, followed by a launch party at the Georgia Theatre, to celebrate. Among the concert’s selected performers are psych-pop outfit Elf Power and singer-songwriter Ruby the RabbitFoot—who both contribute songs to the issue’s accompanying CD sampler—as well as dissonant post-punk group Shade, Danny Hutchens and the Old Hoss Radbourn Experience and a reincarnation of David Barbe’s Mercyland, dubbed The Historical Mercyland Abstract.