The organ is the earliest known of all mechanically operated musical instruments and not, as is sometimes stated, one of the earliest musical instruments. The first known organ dates from the 3rd century BC. This was a hydraulos, with a clever system of maintaining wind pressure by incorporating a water cistern in the wind reservoir; when the wind pressure sank, the water level rose to maintain it. (More…)
dodo
3 Aug, 2008
Aug
3
