I found this on http://blogs.chron.com/aboutchron/
See full article at chron.com
Apparently the photographer is Mayra Beltran of the Houston Chronicle Newspaper.
The pianist is Glover Gill of Glover Tango. He also collaborates with Tosca String Quartet of Austin and does a regular Thursday night live gig/milonga at Lambert's Restaurant in Austin. And, he is a damned good composer and accordianist as well. I can't say enough good things about this guy.
Anyone care to ID the dancers?