[Tango-L] mario, left hand, Yes, you can learn tango from youtube

[Nussbaum, Martin]

Sometimes you "engage" the embrace in the frame and it is felt in the
followers right hand, sometimes less. What others call "muscle tone." 
For example, in a rebote, you would "engage" not tense up, the frame so
she knows it will be a rebote vs a boleo.  In a counterclockwise giro,
my left hand creates a slight pulling action counterclockwise, the
natural result of my left shoulder rotating back.  In close salon
without apilado, this provides follower with useful information.  
Ive learned after ten years there are few, or none,  "always" rules in
tango technique,  every rule has exceptions at different times. 
Also, dont listen to the utter nonsense on this list that you cannot
learn from youtube.  Youtube is the great democratizer of information,
you no longer have to pry the esoteric secrets of tango from exclusive
teachers.    To say that you cannot learn from watching the masters is
as ridiculous a statement as saying that a modern jazz musician does not
learn form listening to older blues, swing, bebop, or that an art
student cannot learn from a visit to a museum to sketch the masters.   I
and many others I know have learned a heck of a lot from it, have used
it for group brainstorming in practicas, and have found many class demos
and summaries on you tube that are very valuable.  Of course, you have
to be selective in what you are looking for, and you have to freeze the
cursor and go back over and over to view not just the movement you like,
but the posture, the embrace, the lead, the timing, it all comes into
play and very hard to get at first viewing.  But if you put in the time
and practice it on your own, you can most certainly benefit from
youtube. It is equivalent to a workshop, but of course not as good as a
private with a qualified pro.