• In the Prelude you will find
    • a Preface defining Sonorities (never to be confused with Harmonic Functions)
    • a List of all possible Sonorities (Tetrads and Triads), with the definition of the code used to classify them.
  • In the Favorites you will find
    • a Preface presenting the Favorites, and
    • a choice of 8 favorite "sounds" and how they are produced.

Beware of the word "chord" !
It can be used to signify either a Sonority or a Harmonic Function.