Meaning of the term ‘Cadencia’
is often simplified and flatten by assigning it as name of one of the steps, specifically rock step. Cadencia tough has much broader meaning. In essence cadencia is a fancy word to describe the way of walking, interpreting and acting through specific music capturing its spirit through rhythm, pause, posture and style but also in more "metaphysical" sense - letting yourself go and flow, connecting with your inner self to improvise and create.
You know already, even if you might not be able to execute it perfectly, that Tango, Milonga and Vals vary in their cadencies. In Tango we strive to arrive on the beat, In Vals the beat falls on the transition period when the weight is split, In Milonga we are starting our movement from the beat. We still keep out rhythm and timing, but the accentuation of the beat is different.