[youtube]http://www.youtube.com/watch?v=ok_bDok8F6Y[/youtube] Tonight, Walter “Wolfman” Washington plays the free Christmas concert at 6 p.m. at the St. Louis Cathedral. It’s the second-to-last show in the series, which ends Tuesday night with Irvin Mayfield. Here’s Washington in a less spiritual mode as he plays a smoking version of “What’s It Gonna Take” from a German television show in 1991.