When a poem might become a song, then certain parts are repeated and might become a refrain or a chorus, so they change in that way. But it's more the nature of the words and what they're saying that determines whether it's a poem or a song.
PJ HarveyFolk music was to strengthen and unify people, whether it was through an uprising and rebellion or whether is was through hard work, bringing in crops. But it was to strengthen each other and that's still what music is about today.
PJ HarveyI long ago learned that you can't expect people to interpret the songs in the way they had meant for you, as the writer.
PJ Harvey