Blok and her company, based in Amsterdam, Netherlands, often collaborate with other choreographers, theater directors and filmmakers. “Tus ojos negros” is particularly telling as different couples, and a few others, react to and dance the tango in a small, mostly deserted club. The very young are predictably charming, and rather good, and a youngish couple, including, I assume, Blok, are astonishing in their speed and verve.

Blok choreographed a huge range of movement, not all of it strictly tango in steps, but tango in spirit. The two are the central part of the video and are riveting. The most poignant part comes with a woman well beyond her dancing prime who remembers the past, finally donning a sleeveless red dress and swaying slightly in front of a mirror. I did not want the piece to end.