Often in tv shows such as "ROME" music in ancient rome is depicted in a certain way, do we have anyway of knowing what music they truely heard back then?

by DisWastingMyTime

Do we have anyway of knowing what music they had other than the very basic like knowing which instruments they used? where there musical notation at the time of cezar?

in general, is every piece of music "writen" before the musical notation lost?

Searocksandtrees