Just a quick question about Joe's tango music - to me on first listen (I'm now listening to it back on iplayer), isn't is used for Argentinian Tango rather than Tango? It seemed slower and darker than usual tango music to me. 
I'm sure it's been used on Strictly for an Argetine Tango before, but I can't think who.

I'm sure it's been used on Strictly for an Argetine Tango before, but I can't think who.