While I don't disapprove of noticing the combined rhythm (which is what words give) I think it's a risky strategy to dwell too much on that. Some people even have words for 3 against 4, which strikes me as a hindrance, not an aid.
I should have added a caveat: this is a beginning step (the use of a resultant rhythm). Once your hands are doing the rhythm in alternation as "2D polyphony/rhythmia," you would begin to change the balance and adjust your hearing to notice the two different rhythms working against each other. The approach can only be applied to 2 vs. 3 and 3 vs. 4, so the idea is that by the time these are mastered, one is hearing them "polyphonically" and can approach all other polyrhythms (even in multiple layers, e.g., 3 against 4 against 5) on the basis of a steady pulse.The word combination is really only a set of training wheels.Hope that was adequately/responsibly explained now!Best,Mike
Sure, we see it much the same on the 2 against 3. I couldn't agree on the 3 against 4 though, personally. I'm not convinced that any words for that even give a terribly accurate sense of the rhythm. I think anything beyond 2 against 3 really needs to be learned horizontally and independently (except for the the meeting on each beat). 2 against 3 can take it- as there's only one note in a "surprise" location, but anything more than that encourages rather wild and ungainly movements. I think it's a lot easier to learn the individual feels and trust them, by that point, rather than focus on a series of notes in which every single one feel like a surprise.
I always think of twos against threes and threes against fours in terms of their resultant rhythms. I don't think it necessarily creates awkward accents or phrasing, as long as you know that the danger is there and avoid it and think of each line independently as well. I don't think I could manage it by just thinking of the independent lines, and especially not if I was a beginner (which I'm not).
I'm sure there are people in the world who can look at 4 against 5 and just feel the pulse and go for it, but I need to work all such things out mathematically.