Ballads

Ballads are a form of poetry that tell a story, often with repeated refrains. When danced to, the refrains would be sung by the dancers. They began to be recited in European folk tradition. They were not written, but passed down from generation to generation orally. They began being written in the fifteenth century and became a sort of sport for poetry writers. Compared to the musical ballad, literary ballads are more complex.

Blow, Blow, Thou Winter Wind

Blow, blow, thou winter wind
Thou art not so unkind
As man's ingratitude;
Thy tooth is not so keen,
Because thou art not seen,
Although thy breath be rude.

Heigh-ho! sing, heigh-ho! unto the green holly:
Most freindship if feigning, most loving mere folly:
Then heigh-ho, the holly!
This life is most jolly.

Freeze, freeze thou bitter sky,
That does not bite so nigh
As benefits forgot:
Though thou the waters warp,
Thy sting is not so sharp
As a friend remembered not.
Heigh-ho! sing, heigh-ho! unto the green holly:
Most friendship is feigning, most loving mere folly:
Then heigh-ho, the holly!
This life is most jolly.

~William Shakespeare

http://www.poemhunter.com/poem/blow-blow-thou-winter-wind/