I almost forgot. The Bartges book focuses upon using a color chart to consider the six color schemes when composing a picture, or rescuing one: monochromatic, analogous, complementary, split complementary, triadic and tetradic. More later.
Also, I am participating in an exhibition called "common places" at studio21south in North Adams, MA., which opens this weekend. Here's the link: http://studio21south.blogspot.com/p/common-places.html