1 I've always wondered how one can know if choreographers are duplicating some dance that's already been done? Is it pretty much always callers comparing notes or is anyone out there making attempts to catalog dances move by move, maybe in a spreadsheet or something like that? 2 Comparing dances, how much variation between sequences qualifies a dance as an individual separate dance, or is custom that rigid? My question is prompted by: In another thread Linda Leslie wrote about "Rollin To The Grey Eagle" "I have this same dance in my collection with the name "32 Seconds" by Tom Calwell. I don't know who might have written it first." Thanks Jim, Not a caller just lurking.