I would like to know how to compose tuplets of odd numbers against even numbers on the piano (ie. 3 against 2). How would you go around composing something like this? I have been composing for some time (mostly small stuff) and whenever I try to write something like this, it is either hit or miss.
I'm sure professional musicians don't randomly plug in tuplets here and there hoping they will sound good. (Chopin writes many tuplets on straight notes) I'm quite positive there is some harmonic relationship going on in there, but I just can't see it. (Perhaps they act something like passing tones?)
I am specifically looking for any rules (suggestions) or techniques for composing this way. If you know of any external articles or sources, I would greatly appreciate the link!
EDIT: Oh good point Matthew! I never considered the rhythmic effects of 3 against 2. How would that affect a composition?