Now I understand. I was interpreting swing dances to be Lindy Hop, WCS, balboa etc, all quite different. Whereas you are using it as a swing group of ballroom dances, a term that I've never heard used. In the US it includes all jive forms I think which in the UK we don't. However I can see your point about excluding Ballroom Tango from such a theoretical composite frame but the "swing" group are similar enough to be compared/contrasted to AT in the (close . . ok - very close) embrace. What do think, shall we leave it there?