Music creates order out of chaos: for rhythm imposes unanimity upon the divergent, melody imposes continuity upon the disjointed, and harmony imposes compatibility upon the incongruous.

Songs should have an infectious melody and rhythm and, I think, should elicit an emotion of happiness or of celebration or of sadness or of sorrow or of love or laughter, whatever.

Lyrics can be important, but ultimately, what pulls people in on a song is melody and the tracks and the way music feels.