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  2. List of piano manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_piano_manufacturers

    Sterling Piano Company: Derby, CT US 1866–1967 Founded in 1845 as The Sterling Organ Company by Charles A. Sterling, the company merged with the Winter Piano Company after the Great Depression. They also produced the cheaper, but reputable, Huntington Piano. Story & Clark: Chicago: US 1884–1993 Straube Piano Company: Downers Grove, IL, US ...

  3. Allen (brand) - Wikipedia

    en.wikipedia.org/wiki/Allen_(brand)

    Originally named Allen Manufacturing Company, the business produced hexagonal set screws and wrenches to fasten them. The terms "Allen wrench" (American English) and "Allen key" (British English) [3] are derived from the Allen brand name and refer to the generic product category "hex keys". W.G. Allen [4] filed the first related patent in 1909 ...

  4. History of home keyboards - Wikipedia

    en.wikipedia.org/wiki/History_of_home_keyboards

    Also in 1983, Dave Smith's company marketed the first polyphonic synthesizer keyboard that could play more than one sound at a time called the 'Six-Trak'. It had a six track sequencer and each track could access a different sound. The same year the SCI Pooppit T8 with optical key sensing became the first piano action emulating MIDI keyboard.

  5. Musical keyboard - Wikipedia

    en.wikipedia.org/wiki/Musical_keyboard

    A musical keyboard is the set of adjacent depressible levers or keys on a musical instrument. Keyboards typically contain keys for playing the twelve notes of the Western musical scale, with a combination of larger, longer keys and smaller, shorter keys that repeats at the interval of an octave. Pressing a key on the keyboard makes the ...

  6. Innovations in the piano - Wikipedia

    en.wikipedia.org/wiki/Innovations_in_the_piano

    The company sells keyboard inserts for Grand pianos and complete upright pianos with smaller (7/8) keyboards. The Modell 370i, built by David Klavins, is a custom 88-key upright piano permanently installed at the University of Tübingen in Germany. The number 370 refers to the number of centimeters of the height of the piano (12 feet), while ...

  7. Piano - Wikipedia

    en.wikipedia.org/wiki/Piano

    The piano is a keyboard instrument that produces sound when its keys are depressed, through engagement of an action whose hammers strike strings. Modern pianos have a row of 88 black and white keys, tuned to a chromatic scale in equal temperament . There are two main types of piano: the grand piano and the upright piano.

  8. Hex key - Wikipedia

    en.wikipedia.org/wiki/Hex_key

    A hex key (also, hex wrench, Allen key and Allen wrench or Inbus) is a simple driver for bolts or screws that have heads with internal hexagonal recesses ( sockets ). Hex keys are formed from a single piece of hard hexagonal steel rod, having blunt ends that fit snugly into similarly shaped screw sockets. The rods are bent to 90º, forming two ...

  9. List of piano brand names - Wikipedia

    en.wikipedia.org/wiki/List_of_piano_brand_names

    This article is a list of piano brand names from all over the world. This list also includes names of old instruments which are no longer in production. Many of these piano brand names are "stencil pianos", which means that the company which owns the brand name is simply applying the name to a piano manufactured for them by another company,