The Beach Boys: “An Arcadian theme in the California pastoral”

Even within the harmonies, there is a strange tension, an off-kilter wobbling as in a machine whose gears are all just a bit off-center. Instruments and voices go in and out of key, tempos slow and quicken. The vocal harmonies are angelic, but troubled, uncertain, maudlin, and underlined with unexpected intensity given the innocuousness of their lyrics. In the isolated vocal tracks here for “Wouldn’t It Be Nice,” “God Only Knows,” “Sloop John B,” and “Good Vibrations,” you may catch it, or not.It isn’t foreboding, exactly, but a kind of uneasy recognition that the pleasures these songs celebrate will soon pass away.