For 30 years, the ATLANTA SINGERS have been a steady, noteworthy presence in the city's choral scene, having built their reputation through solid, though often innovative, programming rather than fluff, drawn from a wide range of repertoire from Renaissance times to our own era. David Morrow leads the 18-voice chamber chorus Tues., FEB. 26, in music by William Byrd, Claude Debussy, Moses Hogan and Morrow himself. $15. 7:30 p.m. Cathedral of St. Philip, 2744 Peachtree Road. 404-365-1052. www.stphilipscathedral.org.