onFIRSTlisten: John Mayer’s Born and Raised

 I have a theory that John Mayer can only produce an excellent album every other time out of the gate.  His superb first studio effort, Room for Squares was followed by the middling Heavier Things, which led to the great Continuum, followed by the weakest of the bunch, Battle Studies.  By that logic, his newly-released album, Born & Raised should be a …