Hello!!
This is a line from Lingua Latina Per se Illustrata:
“Is fidicen nobilissimus fuit qui tam pulchre canebat ut bestiae, naturam suam oblitae, accederent, ut eum cantantem audirent, ac rapidi fluvii consisterent, ne strepitu cantum eius turbarent.”
“He was a the most noblest harper who sang so well that the beasts, having been forgotten their nature, aproached to see him singing, and (?), to not disturb his singing with noise.”
The book says that “oblitae” it’s the same as “cum obliviscerentur”, I’ve got confused. Is that cum causal or circumstantial here?. Why is fluvii here in genitive?