Emu XL-7 & MP-7 User's Group

what does polyrhythms mean and how does it work?

--- In xl7@yahoogroups.com, "t1prod" <t1prod@y...> wrote:
> what does polyrhythms mean and how does it work?

What is a poly rhythm?
The prefix poly- means many and I take it you know what a rhythm is ,
hence:
A Polyrhythm is the result of different rhythms performed 
simultaneously,:
First definition: 
To qualify as a poly rhythm, the contributing rhythms should be chosen 
such that the numbers denoting their rhythmic relation, are relatively 
prime to each other. 

Second definition: 
If the sum of two (or more) simultaneously sounding rhythms results in 
a subdivision of the beat that is not present in either of the 
constituting rhythms, we call this resultant rhythm poly rhythmic. 
Third definition: 
Two different rhythmic patterns do not result in a poly rhythm (when 
played simultaneously), when one of those rhythms can be contained in 
the subdivision of the beat that is implied by the other rhythm.

    3           3           3           3
<------->   <------->   <------->   <------->   < - etc
o   o   o   o   o   o   o   o   o   o   o   o   o - etc
1     1     1     1     1     1     1     1     1 - etc    


somehow a bit like that if your screen´s big enough.
hope this helps 
:Paul

ignore the example - asci/group post problem!
> 
>     3           3           3           3
> <------->   <------->   <------->   <------->   < - etc
> o   o   o   o   o   o   o   o   o   o   o   o   o - etc
> 1     1     1     1     1     1     1     1     1 - etc    
happy new year 
> :Paul