Hi all,
this is an article, I really wanted to write by myself, but unfortunately it already exists. So have a look and enjoy.

-Richard

http://www.neotango.de/index.php/de/blogs/dancing-conventions

P.S.: I disagree on the rejection of tandas but I can well do without cortinas. Anyway, a development of tension needs to be included by a DJ and organizing the playlist into paragraphs of similar music actually is a kind of tanda system.