Purpose clause topological mapping aims to explain the universal conceptual characteristics of morphosyntactic coding in the communicative functions, as well as the cognitive-psychological mechanisms involved in the use.
2.
Thus chords sound like the fundamental, etc . Chord progressions are not well understood, but there is some very promising research by Dmitri Tymoczko on their geometry based on 2, 3, and 4 dimensional topological mappings of the chord symmetries.