During the 4:00 hour of The Folk Tree on Sunday, April 17, Iris DeMent talks with IPR's Karen Impola about her roots in the Arkansas Delta, her emergence as a songwriter, and her most recent album, The Trackless Woods, on which she put music to the poems of Russian writer Anna Akhmatova. Iris will be performing on Thursday, April 21 at the Temple for Performing Arts in Des Moines; opening the show will be her daughter-in-law, Pieta Brown.