I don't know if this discussion has already been proposed. I did a search on the forum but didn't find anything ... if I repeat something already said, please forgive me!
I wanted to point out this "double metronome" theory proposed here by Wim Winters. You will tell me it is old news: however, here we have the possibility to listen to numerous examples, from Mozart and Beethoven to Chopin and beyond. I will also look for some examples in the sections dedicated to these composers.
https://www.youtube.com/watch?v=6EgMPh_l1BI
