On Wednesday, March 13 at 7 p.m. the Choral Scholars of University College Dublin will celebrate their 20th anniversary and the release of their new Signum recording, “Perpetual Twilight,” with a performance at the American Irish Historical Society in Manhattan. Under the artistic direction of Desmond Earley, the Choral Scholars are Ireland’s leading collegiate choral ensemble. The Historical Society performance, entitled “Imagine Ireland: Songs of Home and Perpetual Twilight,” features a collection of new choral music inspired by the evocative imagery of the natural world in traditional Irish and Scottish folk song and poetry. For tickets visit aihs.org/events or email aihs@aihs.org