The evolution of AT, and the multiple ways of dancing it, makes it hard to know where to start. Personally, I think anyone arguing that there is one right way to do just about anything is on very unstable ground.
Agreed - I hope that I, personally, haven't given the impression that I think otherwise (inasmuch as that matters).
I don't think of AT as a latin dance and will give the minimization of hip movement as perhaps the main reason. The prominence of the German bandoneon in the music, and the lack of percussion are other things that are "non latin". And the dance reflects the music.
Hey, does anyone think of Italy as a Latin country? (Really, I don't. But I'm curious, too.) The Italianization of Tango with the deemphasis of African movements was was of the main phases in the early development of AT.
I do find this really interesting (and relevant to the topic)... but it's definitions, so there'll never be a totally right answer.
I tend to think of 'Latin' as those descending from the Romance languages traditions (as UKDancer mentioned, also), so Italy very much so (and France and Spain... and Portugal... though Portugese has other 'strange' influences too, along with some of the Northern Spanish languages).
With that definition (which I know many disagree with), the abscence of percussion is pretty common in some of the 'Latin' music that informed early Tango (Flamenco guitar, mournful French accordions... though it was bandoneóns that were brought over by the more Eastern Europeans, there isn't that much difference to my ignorant ear).
I don't know how much European 'Latins' wiggle their hips - as opposed to Latin American 'Latins' - but I've seen a fair amount of inverse-Cuban motion in TA, with the free-leg's hip cocked upwards, smoothly transfered across as the legs alternate between being free and weighted.
Dunno, a lot of TA seems to be 'inverted 'Latin'' - I've wondered if it was a reaction against the surrounding 'Latins' or something?...
But anyroad, it is the Italianisation that you mentioned that I am drawing most heavily upon as I attempt to embody an 'as authentic as possible' 'spirit of Tango' in my own dancing - a proud, Italian stride [I've spent many years gliding about smoothly: time for a change!

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