The emotional response is pretty important to me as well. With Piazzolla, some of it inspires me to dance, and some of it does not (which for me, is pretty much the same story with many artists).When I dance I don't focus as much on the intricacies of the composition; I focus more on what emotional responses they generate in me. Which is why I typically don't enjoy it when DJs play Astor Piazzolla. The music is brilliant of course, in ways I can't even describe. But does it inspire me to dance? Not very much. That was what I had in mind when I posted the OP.
I get what you mean about alternative music, even if there is some of it I like (although apparently not enough, compared to people that prefer alternative music). I'm much more likely with an alternative tanda, to sit out the first song (because it doesn't make me want to tango), and then the next song in the tanda, might invoke a completely different emotional response (and I'll want to tango to it). This was part of the point I was trying to make earlier in the thread, when I was whining about some alternative tandas (and the DJs who make them). I like tandas that invoke a similar emotional response for the entire tanda. The next tanda can have a different emotion.
The Neo / Electronic tango music can get old quickly, though.
In any case, here's one of my favorite alternative songs. Maybe you could see yourself tangoing to it, or maybe not.
[yt]EgkBx8csEws[/yt]
http://www.youtube.com/watch?v=EgkBx8csEws