I never saw my dad cry. My son saw me cry. My dad never told me he loved me, and consequently I told Scott I loved him every other minute. The point is, I'll make less mistakes than my dad, my sons hopefully will make less mistakes than me, and their sons will make less mistakes than their dads.
Songs used to be short, then they became longer, and now they're getting shorter. But otherwise, music is about a beat and a message. If the beat gets to the audience, and the message touches them, you've got a hit.