Recently, I was trying to understanding what 民谣 exactly means. I know that it is often translated as "Folk Rhyme or Ballad". This implies to me that it is an old, traditional song.
I recently saw a sentence, however, that confused me. It was
"至今南阳仍有“冬至不端饺子碗,冻掉耳朵没人管”的民谣。"
Does this mean that that sentence is part of a song? What does 民谣 actually mean?