Cole Porter - Differences in Repetitions of A Sections

[Teasing the Korean]

One of the characteristics of any Cole Porter tunes is that, if a tune is in AABA form or a similar extended form, there are subtle melodic variations between the A sections, and singers and instrumentalists will often get these wrong.  I just heard Eartha Kitt's version of "Let's Do It," and she sings most or all of the A sections with the melody from the final A section.  Similarly, Esquivel misses some of the variations in the A sections of "Begin the Beguine."  I'm sure there are many other examples, but these two come to mind.