Excerpt from The Theory of Harmony: An Inquiry Into the Natural Principles of Harmony, With an Examination of the Chief Systems of Harmony From Rameau to the Present Day English theorists: Day's Treatise on Harmony (184 5) Diatonic and Chromatic Harmony The Key-system Natural Discords Day's Fundamental Bass: System of Roots Minor Harmony and Minor Mode: The Subdominant: The Augmented Triad.
Introspection, carried too far, may wreck the soul of a man, but without it a poet is merely a versifier or an experimenter, dealing with the laboratory instead of with life. For him there must be no eternal verities except those he discovers and proves to himself. He can take nothing on trust. His life-work is to " stir the decent dust about the world " — his own world as well as that of oth…