I would like translations from english to spanish for the works, "polyrythm, music meter, orquestration"

Question

I would like translation from english to spanish for the following words, which do not come up in the spanish dictionary. The words are: "polyrythm, music meter, orquestration".

Thank you,

                Marcos

Answer 1

orchestration

meter is the same for music and poetry, just like in English

poliritmo