George Gershwin wrote ‘Summertime’ (lyrics by DuBose Hayward) as an aria to the 1935 opera “Porgy and Bess”.  This song has subsequently been recorded over 2,600 times and is unofficially tied with the Beatles’ single "Yesterday" as the most popular song of all time.  (http://www.answerbag.com/q_view/860618)
Its whimsical nature can be traced to the inspiration for the [...]