Vincent Herring & Earth Jazz, Morning Star (Challenge). The rhythm section known as Earth Jazz is electrified, funkified and synthesized. Collaborating with them, Herring looks back to the heyday of ’60s and ’70s soul, with stylistic references to Herbie Hancock, early Weather Report and tinges of Azymuth and The Crusaders. His customary power and tonal perfection on alto and soprano saxophones are intact, even as he adheres to the limitations of the setting. The title tune eases up on the back beat, allowing Herring the balladry at which he excels. It’s a welcome break from the funk formula, as are his echoes of Hank Crawford, and Anthony Wonsey’s acoustic piano work in the concluding “You Got Soul.”