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| 7: How the barrel controls the operation of the Mechanical Orchestra | |||||||||||||||||||||||
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Each music barrel is a "recording" of a particular piece of music. After it is installed within the musical mechanism and the machine is set in motion, the barrel begins to rotate. As it turns the pegs and staples raise push-rods connected by wooden rods to the different pallets on the windchest. When a push-rod is raised that opens a pallet and air is sent to one of the organ pipes. When the push-rod drops back down, the pallet closes and the note ends. Each organ pipe has its own tone and unique sound qualities. Rising and falling together, the push-rods of the Mechanical Orchestra control the operation of several pipes at once, making it possible to produce chords as well individual notes. | ||||||||||||||||||||||
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Copyright © 2006 State Hermitage Museum |
