An in songwriting, performance and production (Wonder has nearly all the instruments on all tracks by hand into play) perfect album, on which the hard funk-rock song "Superstition", the Soul classic "You Are The Sunshine Of My Life" or the socially critical bitter "Big Brother "only highlights between very sincere ballads (" You And I "," I Believe ") and emotional funk songs (" Maybe Your Baby ") are. This is real 70's black music sound its best.