Thanks to our correspondent Karlos, who sent us this nice video clip of an old Eddie Torres instructional DVD. I get a lot of questions about timing and clave - and of course, the main discussion of dancing On2/On1. Here is a great find, one of the best I've seen, on what it is to dance on clave. This instruction specifically shows you how the 'tumbao' or 'el vacio' hooks into the basic salsa step. Specifically, watch how when those parts of the beat match the parts where Eddie in the video breaks forward and back. Of course, that is all I will say (to reduce the nasty-grams about On2). Anyways, a video is worth ten-thousand words.