Rahsaan Patterson’s career is proof that an artist can be progressive while firmly based in gospel and R&B traditions. After a 13-year period entailing a co-starring role on Kids Incorporated, songwriting triumphs with Brandy’s “Baby” and Tevin Campbell’s “Back to the World,” and other activity behind the scenes, Patterson finally made his solo major-label debut with a self-titled album (1997) that started an unbroken streak of moderately successful, stylistically adventurous studio recordin...