Composer and bass-baritone Bradley Ellingboe, director of choral activities at the University of New Mexico, will perform at free concert at 7:30 p.m. Tuesday, Jan. 14, in the Piedmont College Center for Worship and Music in Demorest. Ellingboe will sing works by R. Vaughan Williams, Jacque Ibert, Edvard Grieg and one of his own compositions, “Questions About Angels,” from his newest work, “Star Song.” Originally from Minnesota, Ellingboe graduated from Saint Olaf College and the Eastman School of Music.