hi Hyacinth When Novotney says the  relationship and its permutations is the foundation of most typical polyrhythmic textures found in West African musics and Agawu says The resultant  rhythm holds the key to understanding    there is no independence here because  and  belong to a single Gestalt they assume the reader knows that three beats and two beats existing in the same time span is a form of divisive rhythm Because of that assumption the issue of divisive rhythm rarely comes up except in regards to mistaking crossrhythmic fragments such as the standard pattern and tresillo as forms of additive rhythm   Do you think it would be sufficient if I wrote something to preface Novotney and Agawus statements that said something to the effect that  is a form of divisive rhythm