Call and Answer Barenaked Ladies the jist is as follows: the verse is a chord stucture that bounces back from D to G for a spell, then they through in a descending bit starting with Bm, then leading to and ending on A. the really pick people out there can use A7, whichever you prefer. the chorus stars on G and goes to D, and ends on A. Original, eh? Okay not really. the instrumenetal starts with Em, and you just play with the bass structures. the bridge goes G, Gm, D, Bm, repeats and ends off (azchords.com)