The pump organ or reed organ is a type of organ using free-reeds that generates sound as air flows past the free-reeds, the vibrating pieces of thin metal in a frame.

The bellows, operated by a hand lever or by two foot pedals, supply the vacuum which draws the air over the reeds. The sides of the bellows are fluted and collapsible. When the bellows are expanded, the vacuum occurs and the bellows are filled with air.

2021年6月6日 · A Harmonium is a free-reed organ that generates sound with a foot or hand pumped bellows. It produces sound as air flows past a vibrating reed in a frame. The physical characteristics of the reed like its mass, length, cross-sectional area and stiffness determines the pitch of the sound.

Artis and Edmund Wodehouse have bought this little 1917 Estey pump organ and are trying to understand how to attach the pedals so that the bellows can be pum...

Melodeons Came Before Pump Organs. The major difference between the two is the melodeon produces its tones by drawing air in through suction. The air passes over metal reeds, activated by foot pedal bellows. The instrument's predecessor, the European harmonium, was played by expelling air from within by compressing the bellows.

By foot pumping the bellows, the foot pump reed organist supplies a steady flow of air to the instrument that can be made to vibrate the reeds by depressing the keys. The reeds are made of brass and clamped at one end, like a cantilever bar.

The pump organ or harmonium is a type of reed organ that generates sound with foot-pumped bellows. More portable than pipe organs, reed organs were widely used in smaller churches and...

Harmonium, free-reed keyboard instrument that produces sound when wind sent by foot-operated bellows through a pressure-equalizing air reservoir causes metal reeds screwed over slots in metal frames to vibrate through the frames with close tolerance. There are no pipes; pitch is determined by the

By working the foot pedals you’re working the organ's two exhaust bellows. So it’s understandable that the organ has come to be known as the pump organ. Because after only a couple of minutes working the foot pedals you will not soon forget the energy needed to operate the foot pedals - it’s not always easy.

Pedal webbing used for reed organ pedal straps and hinges on large pneumatics, swells and equalizers. Two inches wide, white herringbone weave. Extra strong, tightly woven. Use this to connect the reed organ pump pedals to the exhauster bellows. 2" wide and sold by the foot. Orders more than one foot will be sent a