We've discussed this song before, but I don't see where we've had the lyrics posted. Here is a set of lyrics to start from, although I won't vouch for their accuracy. Is this what Patsy Montana sang?
-Joe Offer-

She Taught Me How To Yodel
(songwriter unidentified)

I went across to Switzerland where all the Yodelers be
To try to learn to yodel and go yodel-ay-hee-dee
I climbed a bighigh mountain on a clear and sunny day
And there I met a young swiss girl up in a swiss chalet


        She taught me how to yodel-----(yodel)
        She taught me how to yodel-----(yodel)


This girl up in the mountains was a sweet lovely swiss
She taught me how to yodel and she taughyt me how to kiss
She taught me how to cuddle in that good old mountain style
We did our loving on an alp, and yodeled all the while


        This is how to yodel-----(yodel)
        This is how to yodel-----(yodel)


And now I'm going to teach you all to yodel just like me
It's easy while you're shining to go yodel --ay--hee--dee
First you take a deep breath, then you exhale one, two, three
And then you'll hear a yodel if you'll listen close to me


        This is how to yodel-----(yodel)
        This is how to yodel-----(yodel)


Source: http://www.nsknet.or.jp/~motoya/BG/S/She_taught_me_how_to_yodel.html