I normally drive my patches in PD from one metronome, have counters selected to that metronome and select the rhythms I want from that.
What would be a good way to link up more than one metronome, and be able to have them operating at different tempos, yet still synched up? So a 2nd metronome is playing tuplets of the beat of the first metronome. I really want to get rhythms more interesting than multiples of 2s and 3s. And possibly have metronomes at different, but related tempos to get polyrhythms like 2 against 3 or 3 against 5.
I made a little test patch to get tuplets, but I think It can be tighter. I am using BPM, but I wonder if I should make some kind of converter to sample accuracy to make it a lot tighter.