On , Richard Mckeever <macmck(a)ymail.com> wrote:
  We have never attempted to track this and have not had
a problem with  
 caller using the same dances or ones that are similar. 
Our dance is multi-caller, and our standard procedure is to have the  
night's callers fill a spreadsheet with their anticipated dances (not cast  
in stone) including all the moves, so everyone knows when they are going on  
and we can look out for too many in a row too similar. Last dance, we got a  
little tight on time and the spreadsheet had only titles. We ended up with  
2 dances exactly the same under different titles. Some dancers noticed,  
some didn't.