When I started dancing and listening to tango music two years ago, I quickly discovered that one of the easiest ways to identify an orchestra was to pay attention to the final two chords of the song (the dominanc-tonic, characteristic “chan-chan” ending ). Each orchestra plays those chords in its own, distinctive way, so by learning how the chords sound like, one can infer the orchestra even of songs one is unfamiliar with.  The video below, which I created a while ago for my own amusement, provides a sample of the tango endings of 20 of the most popular tango orchestras.  I am now posting it here in case it is of interest to readers of this blog.