Melissa Walker Hear Melissa Walker and Christian McBride on Singers Unlimited By Michael Bourne • Nov 10, 2017 Isaiah McClain/WBGO It’s astonishing that bassist Christian McBride is only 45. He’s been playing with everyone for decades. Roy Hargrove and the Jazz Futures early on. Diana Krall. Sonny Rollins. And plenty of other jazz masters, including his mentor Ray Brown.