Pure brilliance. Stevie Wonder at his best in every way. This music stand the test of time while tackling weighty issues. The songs you know are great. The album version of "Isn't She Lovely" only serves to extend the joy and beautiful harmonica work. The songs you don't know are great. Some of the songs you don't know are songs you know; "Pastime Paradise" will be reworked decades later as a hit song in "Gangsta's Paradise." Front to back, a beautiful album. My only complaint is that, on vinyl, they perpetrated that obnoxious trick where sides 1 and 4 are on opposite sides of the same disc with 2 and 3 on the other. Why must they require maximum screwing around with changing discs from the sleeve? Any album where this is the criticism should tell you something.