Any songs that have meaning of bullying, war, peace, poverty, loss, oppression, environmental awareness, racism or peer
tell as many songs you

John Mayer - "Waiting for the world to change"
Katy Perry's ex reflects in a song published in Continuum (2006) a kind of millennial justification for the lack of anti-war claims of American society. "My friends and I are misunderstood / They say we don't fight for any cause, and there is no way we can do it / Now we see everything that is wrong in the world and those who lead it / But we feel we don't have the weapons to fight and beat them.

Almafuerte - "The visitor" The Falklands War left an indelible lesson: the lack of protection and isolation suffered by ex-combatants on returning to the continent left more sequels than the war itself. "Forgetting I know well that you can't, how society forgets that you were forced to march in their defense," Ricardo Iorio sings.

Iwould say 2: rhythm and repetition