Contra dance has a very standard musical form: 64 beats in eight
8-beat phrases. Dances require this, though some only need 16-beat
phrases and some work better if there's some 4-beat chunkiness.
There are a small number of contra dances that don't fit this pattern
 but I can only think of one  that's actually crooked .
Dancers certainly notice, which is not ideal as I don't want to make
dancers think, but as long as the caller's on top of things it works.
Playing around with "the walloping window blind" as a possible dance
tune has me thinking how maybe if you could add some beats early in a
phrase but still end it clearly, you might be able to keep people
from having to think about it at all. The problem with the song in
question is that (if A is the verse and B is the chorus) in the
middle of the A2 and at the end of the B1 it adds two beats.  You
can square it up simply by squishing the four rising notes into two
beats instead of four, but I'm thinking you might only need to do
that with the B part (where it's at the end) if you used the
appropriate dance. Anything with a balance and swing in the A2, such
, or heartbeat
, ought to work.
Now I need to try this out with some dancers. I think it would
work, but you can't tell until you try it. I also think there's some
chance you could actually leave in both places where it's crooked,
but I'm not sure.
 For example, the chestnut "money musk" which is only 48 beats or
the modern dance "alternating corners" which takes 128.
 Cherokee Shuffle, when danced with the extra balance at the end
gets another four beats of melody.
 A crooked tune is one that doesn't divide evenly into eight beat
 If you're looking at the lyrics
the beats are added where the words are stretched out: