I came across a part I found really interesting and quite challenging to my piano level in the piece Arabesque No.1 in E major by Claude Debussy, where both hands seems to not follow the same time pattern. I realized while practicing that it could be an example of polyrhythm, which is a concept I didn't really know, so I started to do some research to prove or not my assumption. I understands the idea of the concept, but I don't feel able to recognize it in a piece.
My question to you would be, is this part an example of polyrhythm, since to me it looks like triplets over dublets in four beats ? If not, is there some clues or tips to quickly recognize a polyrhythm part in a piece ?
Thank you very much !