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History of the player pianoThis musical instrument was not invented by any one person, since its many distinguishing features were developed over a long period of time, principally during the second half of the 19th century. An early example was the Pianista, developed by Henri Fourneaux in 1863, though ultimately the best known was the Pianola, originally created by Edwin Scott Votey in 1895 at his home workshop in Detroit, Michigan. It was Votey's invention that initiated mass production of the instrument, which went finally into production in 1898.[1] John MacTammany, an American Civil War veteran, also claimed much credit in the invention and development of the instrument, having patented several devices that were important to the development of the player piano from 1881 onwards. Types of player pianosImage:SteinwayWelte1919.jpg Steinway Welte-Mignon reproducing piano (1919) Image:CoinPlayerPiano.jpg A coin-operated Link Orchestrion player piano.
The most familiar type of pneumatic player piano looks like a normal upright piano, but has a mechanism controlled by a paper music roll contained within the cabinet of the piano itself. However, the original pneumatic players were constructed in a separate cabinet, which was placed in front of the keyboard of an ordinary piano. This unit was positioned in such a way that a series of felt-covered wooden or metal "fingers" were located above each key of the piano and struck the corresponding note as indicated by the perforations in the music roll; most include one or more moving "feet" to control the piano's pedals as well. These early instruments came to be known as cabinet players or vorsetzers. From around 1908, the roll mechanisms were also built into grand pianos. Image:Pianola1.JPG A restored pneumatic player piano Ampico (American Piano Company), Welte-Mignon, and Duo-Art (Aeolian Company) are a few of the popular brands of (now antique) reproducing piano mechanisms. Each uses a different encoding method for the paper music roll and different internal systems to control the piano during playback. These mechanisms were retro-fitted into many different piano brands (Steinway, Marshall and Wendall, Kimball, etc.) Player pianos were sometimes manufactured with additional combinations of organ pipes and percussion instruments built into them. This kind of instrument was called an Orchestrion, built since about 1840. One of the leading companies in this business were the German-American company M. Welte & Sons, the later producers of the Welte-Mignon reproducing pianos, and the Wurlitzer Company, founded by German immigrants from Bavaria. These massive devices were some of the most complicated mechanical musical instruments ever built, with the exception of a few organs.
Player mechanismImage:Pneumatic piano.png Player piano action. Image:Pianola closeup.JPG Horizontal row of tracker tubes detects music roll holes. The common pneumatic mechanism generally uses many tracker tubes behind the music roll. A state of vacuum in a tube is destroyed when air enters through a perforation in the music roll. The increased air pressure opens a valve which allows pneumatic force, through a mechanism such as a bellows or piston, to activate a key. Some players use a double valve so as to better control the movement. When the perforation moves past the tracker tube, a bleed hole restores the vacuum state in the tube. These operations take place quickly enough that a player can execute a trill much more rapidly than can be played with the human finger. A cabinet player presses a mechanical finger on a piano keyboard, while a piano with an internal player uses internal mechanical linkages to move a key. Players may also alter the sound of the piano with a sustaining pedal lever and a soft or accent lever. A fully pneumatic system is driven by a foot-operated bellows mechanism which creates a vacuum in a reservoir system, similar to that used in a foot-operated organ. Some models use an electric motor to create the vacuum or to move the music roll. A rewind lever rewinds the roll with the music playing mechanism disabled. Music rollsMusic rolls for pneumatic player pianos, often known as piano rolls, consist of continuous sheets of paper, about 11 1/4 inches wide and generally no more than 100 feet in length, rolled on to a protective spool, rather like a large cotton reel. The paper is perforated with numerous small holes, which control the pattern of the notes to be played as the roll moves across a tracker-bar. On reproducing rolls, additional holes control the volume level, accents, pedals, etc., to faithfully recreate the original performance. Music rolls were not very popular in Europe, except for some German instruments, and book music was the most commonly used medium for large instruments. Preservation and restorationEfforts are underway to restore and archive player piano music rolls in the form of MIDI sequences. This is being accomplished by optically scanning the player piano rolls, then converting the resulting image file into MIDI using specialized software. An excellent side-effect of this procedure is that modern player pianos use MIDI control and sometimes even include media readers (floppy or CD drives, etc.), and thus these sequences can be readily played on modern pianos with no further modifications to the MIDI sequence. Modern player pianosImage:DisklavierPlayer.jpg Player and control unit of Yamaha Disklavier Mark III Image:DisklavierSilencer.jpg Synthesizer control unit of Yamaha Disklavier Mark III Later developments of the reproducing piano include the use of magnetic tape and floppy disks, rather than piano rolls, to record and play back the music; and, in the case of one instrument made by Bösendorfer, computer assisted playback. Almost all modern player pianos use MIDI to interface with computer equipment. Most modern player pianos come with an electronic device that can record and playback MIDI files on floppy disks and/or CD-ROMs, and a MIDI interface that enables computers to drive the piano directly for more advanced operations. Live performance or computer generated music can be recorded in MIDI file format for accurate reproduction later on such instruments. MIDI files containing converted antique piano-rolls can be purchased on the Internet. As of 2006, several player piano conversion kits are available (PianoDisc, Pianomation, etc.), allowing the owners of normal pianos to convert them into computer controlled instruments. The conversion process usually involves cutting open the bottom of the piano to install mechanical parts under the keyboard. Player pianos versus electric pianosA player piano is neither an electric piano, electronic piano, nor a digital piano. The distinction between these instruments lies in the way sounds are produced. A player piano is an acoustic piano where the sound is produced mechanically by moving keys which cause hammers to strike the piano strings. References
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