The Tri-City Singers may have retired in 2006, but their voices continue to carry. A protégé of Richard Smallwood, Donald Lawrence deftly directs his spirited gospel choir through a wide range of heavenly harmonies. This greatest hits collection contains modern gospel hymns like “Never Seen the Righteous,” as well as choir showcases like “The Blessing of Abraham,” with its promise of prosperity. The mood rises to new heights on the groovy gospel track “Miracle” and the classic choir tune “Encourage Yourself,” which builds to a thrilling crescendo.