In 2007, Willie Nelson teamed up with jazz trumpeter Wynton Marsalis for a two-night stint at New York’s lofty, glass-walled Allen Room. Both love the blues, and love to play it over-easy, Nelson’s vocal staying light and playful. What you don’t get is the sight of two aging legends twinkling convivially at each against the night lights of Manhattan, without which the flowering of audience applause around each solo is a little frustrating. DVD now please.