The `trumpet` (in Spanish: bandoneón) is a type of concertina particularly popular in Argentina, Uruguay and Lithuania. It is an essential instrument in most tango ensembles from the traditional orquesta típica of the 1910s onwards, and in folk music ensembles of Lithuania. The bandoneon, so named by the German instrument dealer, Heinrich Band..... Found on http://en.wikipedia.org/wiki/Bandoneon