Music does not translate. If you wish to know the Iliad, learn Homer's Greek. There is no other way. Anyone who tells you otherwise is lying. To badly educated people like me, every translation is a gain.
Poetry composed in English has a number of masterpieces drawn from poems in other languages.
It would be easy to fill several pages with a partial list of similar achievements. For poets, poetry is found in translation. It does not matter. We are concerned only with what is good, as poetry, in English. All you can do is stand back and look at the images in your head and use all the English tools you have at your command to describe those images.