Color organ
The term color organ refers to a tradition of mechanical devices built to represent sound and accompany music in a visual medium. The earliest created color organs were manual instruments based on the harpsichord design. By the 1900s they were electromechanical. In the early 20th century, a silent color organ tradition (Lumia) developed. In the 1960s and 1970s, the term "color organ" became popularly associated with electronic devices that responded to their music inputs with light shows. The term "light organ" is increasingly being used for these devices; allowing "color organ" to reassume its original meaning. History of  the concept. In 1590, Gregorio Comanini described an invention by the Mannerist painter Arcimboldo of a system for creating color-music, based on apparent luminosity (light-dark contrast) instead of hue. In 1725, French Jesuit monk Louis Bertrand Castel proposed the idea of "Clavecin pour les yeux" ("Ocular Harpsichord"). In the 1740s, German composer Telemann went to France to see it, composed some pieces for it and wrote a book about it. It had 60 small colored glass panes, each with a curtain that opened when a key was struck. In about 1742, Castel proposed the "clavecin oculaire" (a light  organ) as an instrument to produce both sound and the 'proper' light colors. In 1743, Johann Gottlob Krüger, a professor at the University of Hall, proposed his own version of the ocular harpsichord. In 1816, Sir David Brewster proposed the Kaleidoscope as a form of visual-music that became immediately popular. In 1877, US artist, inventor Bainbridge Bishop gets a patent for his first Color Organ. The instruments were lighted attachments designed for pipe organs that could project colored lights onto a screen in synchronization with musical performance. Bishop built three of the instruments; each was destroyed in a fire , including one in the home of P. T. Barnum. In 1893, British painter Alexander Wallace Rimington invented the Clavier à lumières. Rimington's "Colour Organ" attracted much attention, including that of Richard Wagner and Sir George Grove. It has been incorrectly claimed that his device formed the basis of the moving lights that accompanied the New York City premiere of Alexander Scriabin's synaesthetic symphony in 1915. The instrument that accompanied that premiere was lighting engineer Preston S. Millar's chromola, which was similar to Rimington's instrument. In a 1916 art manifesto, the Italian Futurists Arnaldo Ginna and Bruno  Corra described their experiments with "color organ" projection in 1909. They also painted nine abstract films, now lost. In 1916, the Russian Futurist Painter Vladimir Baranoff Rossiné premiered the "Optophonic Piano" at his one-man exhibition in Kristiana (Oslo, Norway). In 1918, American concert pianist Mary Hallock-Greenewalt created an instrument she called the "Sarabet". Also an inventor, she patented nine inventions related to her instrument, including the rheostat. In 1921, Arthur C. Vinageras proposed the "Chromopiano," an instrument resembling and played like a grand piano, but designed to project "chords" composed from colored lights. In the 1920s, Danish-born  Thomas Wilfred created the "Clavilux", a color organ, ultimately patenting seven versions. By 1930, he had produced 16 "Home Clavilux" units. Glass disks bearing art were sold with these "Clavilux Juniors". Wilfred coined the word "lumia" to describe the art. Significantly, Wilfred's instruments were designed to project colored imagery, not just fields of colored light as with earlier instruments. In 1925, Hungarian composer Alexander Laszlo wrote a text called "Color-Light-Music"; Laszlo toured Europe with a color organ. In Hamburg, Germany from the late 1920s–early 1930s, several color organs were demonstrated at a series of Colour-Sound  Congresses (German:"Kongreß für Farbe-Ton-Forschung"). Ludwig Hirschfeld Mack performed his Farbenlichtspiel colour organ at these congresses and at several other festivals and events in Germany. He had developed this color organ at the Bauhaus school in Weimar, with Kurt Schwerdtfeger. The 1939 London Daily Mail Ideal Home Exhibition featured a "72-way Light Console and Compton Organ for Colour Music", as well as a 70 feet, 230 kW "Kaleidakon" tower. From 1935 to 1977, Charles Dockum built a series of Mobilcolor Projectors, his versions of silent color organs. In the late 1940s, Oskar Fischinger created the Lumigraph that produced  imagery by pressing objects/hands into a rubberized screen that would protrude into colored light. The imagery of this device was manually generated, and was performed with various accompanying music. It required two people to operate: one to make changes to colors, the other to manipulate the screen. Fischinger performed the Lumigraph in Los Angeles and San Francisco in the late 1940s through early 1950s. The Lumigraph was licensed by the producers of the 1964 sci-fi film, "The Time Travelers". The Lumigraph does not have a keyboard, and does not generate music. In 2000, Jack Ox and David Britton  created "The Virtual Color Organ". The 21st Century Virtual Reality Color Organ is a computational system for translating musical compositions into visual performance. It uses supercomputing power to produce 3D visual images and sound from Musical Instrument Digital Interface (MIDI) files and can play a variety of compositions. Performances take place in interactive, immersive, virtual reality environments such as the Cave Automatic Virtual Environment (CAVE), VisionDome, or Immersadesk. Because it is a 3D immersive world, the Color Organ is also a place—that is, a performance space. Further study. California Institute of the Arts scholar William Moritz has documented color  organs as a form of visual music, particularly as a precursor to visual music cinema. His papers and original research are in the collection of the Center for Visual Music, Los Angeles, which also has other historical color organ papers and resources.