The repetition of forms sets up a grade of predictability
that is comforting to all listeners
The reason why these songs are so popular is because they work
Be conventional
Don't waste your time
Two and two makes four
Now you got one verse
Let's go with two
But don't wait too long
It's time
Here it comes
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3, 4
Don't be a risky man
This is the plan:
Two more lines, the third verse is done
Well the fourth verse comes
We're doing fine
Don't do that!
It sounds different!
1, 2, 3, 4

INVIA LE CORREZIONI