Milonga is an event where Argentine tango is danced. The venue dedicated to milongas may also be called "milonga". People who frequently go to milongas may be called milongueros.

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The music played is mainly tango, vals and milonga. Most milongas are held on a regular basis (usually weekly), and they often begin with dancing classes and sometimes demonstration dances. Usually, three to five songs of a kind are played in a row (this is called tanda) followed by a short musical break (called cortina) to clear the dance floor and facilitate partner changes. There are a number of informal rules that dictate how dancers should choose their dancing partners and navigate the floor.^[1]