Can ancient poems be sung?

Ancient poems can basically be sung, so they are called poems. Take Yuefu poems as an example. Yuefu is an official position established by the court to manage music since the Qin Dynasty. Collected many folk songs, such as the famous Yuefu folk song Peacock Flying Southeast, Mulan Ci and Shang Mo Sang. The lyrics of these Yuefu folk songs are called Yuefu poems.