Why do Penny and Sheldon's mom sing "Soft Kitty, Warm Kitty" differently?
Penny sings "Soft Kitty, Warm Kitty" to Sheldon in a few episodes of "The Big Bang Theory". In at least one other episode, Sheldon's mom sings "Soft Kitty, Warm Kitty" to him but with a slightly different melody. Here is Penny's version, and here is Sheldon's mom's version. Were the differences a choice of the actors, the writers, or the director, and was it done for a specific reason (possibly to show how the two women "mother" Sheldon a little differently)?
To be musically specific, Penny sings the first 3 notes as separated by a minor third, and the next 3 notes as separated by a major third. Sheldon's mom (Mary Cooper) sings the first 3 notes separated by an octave, and the next 3 notes separated by a minor 7th. The same thing repeats in the second verse for each of them.
Best Answer
The first time Sheldon asks Penny to sing the song, she does not know it, so he teaches it to her. He is sick and sings it a little off. So she sings it the way she remembers Sheldon teaching it to her.
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Answer 2
I feel that, as Sheldon is so accurate about everything, this must be a mistake in the continuity...surely he would have taught Penny exactly the same tune as was sung to him by his mother?
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