The Harmonium is a popular indian musical instrument , especilly in classical, devotinal, and folk music . it is a type of pump organ , originating from western europe, but it has been widely adapted and integrated into indian music over time . The hand-pumped harmonium was created by Dwarkanath Ghose so that the instrument could be played while the player was sitting down on the floor. It is used in Afghanistan, Bangladesh, India, Nepal, Pakistan, and in other South Asian countries as an accompanying instrument in Hindustani classical music, Sufi Music, Bhajan and other devotional music, Qawwali, Natya Sangeet, and a variety of genres including accompaniment to Classical Kathak Dance and other entertainments. Others began building used similar instruments best indian musical instrument shop in north delhi . music emporio. click for more details.