I admit I bought this for the 23-something minutes of group improv alone. That said, lots of energy developed on that middle section solo section on “Doctor Diamond.” It reminds me so much of the insanely fast solo section in the middle of Mahavishnu Orchestra’s “Trilogy” on their live “Between Nothingness and Eternity” album. The latest KC lineup should do “Diamond.” It would be fun to hear Mel play that quick violin riff. (Talking about Mahavishnu, the crescendo to Robert...