Thank you for answering our questions.
I have a short one for you…
Have you ever seen a special metronome for polyrhythms?
Some years ago, I used to practice with some software called “Bounce Metronome” until my old computer crashed. Back then it was only for PC’s, so I haven’t used it since. (I opted for a Mac when that happened.)
After checking the website today, it looks as though they have a beta version for Mac. I will be giving it a try as soon as possible.
There’s also an app on my phone named "PolyRhythm" that I downloaded some years back. Every once in a while I’ll turn it on and just practice counting polyrhythm subdivisions out loud.
I think that I saw a physical one at one point that went for $350 or something like that. As far I can recall, they only made a limited run.
Although these are nifty little gadgets, remember that they are not necessary and any old metronome will do. At the end of the day, you should be able to perform these rhythms without a special metronome; just like you are able to perform half notes, quarters notes, eighth notes and so on.
I hope this helps...