Tour of tangopolis: a dance through the rhythms of Buenos Aires

This week marks the centenary of Astor Piazzolla, tango’s revolutionary – and the city is filled with the sights and sounds of his music

Listen to Chris Moss’s Piazzolla 100 selection on Spotify

On a central reservation in Puerto Madero, Buenos Aires’ youngest and least atmospheric neighbourhood, stands a strange-looking monument. It’s a twisted, abstract sculpture, in steel, that looks at first glance like the cooling fins from a motorbike engine. It is, in fact, an unfurled bandoneón (button accordion), the fiendishly difficult instrument of German origin that produces the unmistakeable sound of tango: a pained and plangent breath from a broken heart.