Billy Martin, Chris Wood, John Medeski MEDESKI MARTIN & WOOD Improvisation is key—just don’t call ’em a jam band In late 2008, jazz-rock trio Medeski Martin & Wood pondered ways to inspire themselves to write new material. They found that inspiration in the animal kingdom. “There’s a bird, a certain canary, that comes up with a new song every year, which it never repeats in its lifetime,” explains keyboardist John...