a tool for visualising the process of musical chord construction
Since Pythagoreas, the fifth has been established as a stable musical interval. Being the second most consonant interval apart from the octave, it is not unlikely for the psychoacoustical octave equivalence phenomenon to carry over to fifths as well.
The Quintal Chord Concept extrapolates upon this construct to suggest that, to a certain extent, stacked fifths can represent variations in texture in the same manner stacked octaves do, and thus utilising this hypothesis to provide a fresh perspective on how stacked fifths in chords can represent different 'levels' of the same 'color' in the same way octaves represent different 'levels' of the same 'note'.