a keyboard instrument a rectangular wooden body a long, sloping top a set of bellows at the back two or more sets of keys two pedals for controlling the bellows multiple reeds and pipes for producing notes
harmonium which is a keyboard instrument harmonium which is a rectangular wooden body harmonium which is a long, sloping top harmonium which is a set of bellows at the back harmonium which has two or more sets of keys harmonium which has two pedals for controlling the bellows harmonium which has multiple reeds and pipes for producing notes