This is the sound of Buenos Aires, the intense nostalgic Argentina of popular imagination,

is the sound of tango. The tango is full of tradition. The man approaches the woman, he

dominates the movements during the dance, where he leads, she's compelled to follow. It is

macho. He pushes. She twists in his arms. Her power is in her seduction. His only

weakness is revealed in the lyrics.

Most often, their songs about long lost love.

It's a dance of sexual politics and passion,

all playing out in front of an orchestra and wrapped audience, sometimes long into the night.

But in some tango gatherings or milongas as they know, this is changing.

Women stand as equals. They can lead or dance together. The rulebook is being

torn up and some of the old songs about violent revenge by a jilted lover are no longer being sung.

There's a feminist revolution going on in Argentina

and it's not confined to the tango hall. Sexual politics is top of the political agenda and

women here are squaring up for a long fight.

It helped me allow to go deeper into how I feel about feminism, but I have finally I have a cause.

They're shaking the foundations. The young women are switched on without

people having to say anything, but with the support of what came before. I'm Katie Watson and I'm the BBC South America

correspondent. In my time here I've covered lots of stories on gender issues and

what's happening here in Argentina is nothing short of

transformational. Argentina's feminists have helped lead the way in the region in

recent years with political activism, mass strikes and social media movements. The most recent wave of

activism started as a struggle against gender violence, but it's evolved to take

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