On the surface, a show with a machine theme could seem rather aloof, disjointed and, of course, mechanical. Getting down to the nuts and bolts of such a project pushes past the heart and soul of most music into a world of cold blue steel, sprockets, gears and synchronized repetition.  

Still, there is plenty going on when humans take on mechanical qualities. Or when they see themselves as an oasis of emotion in a world gone cold.

Hear Retrofit: The Rise of the Machines Saturday, Nov. 14 at 5 p.m., and supplement that playlist with these mechanical milestones: