BANDONEON is a special kind of accordion with bellows. It was invented by teacher of music Henry Band from German city KREFELD in 1830. Later BANDONEON was moved with European emigrants to Argentina where became the main solo instrument in tango orchestras. Outstanding bandoneon-player of nowadays was Astror Piacciola - a musician who created a lot of musical compositions for BANDONEON. As an example we chose a part of his famous "Liberatango" for music sample.