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  2. Piano key frequencies - Wikipedia

    en.wikipedia.org/wiki/Piano_key_frequencies

    Piano key frequencies. This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th key, the fifth A (called A 4 ), tuned to 440 Hz (referred to as A440 ). [1] [2] Every octave is made of twelve steps called semitones.

  3. 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.

  4. 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 ...

  5. MIDI keyboard - Wikipedia

    en.wikipedia.org/wiki/MIDI_keyboard

    A MIDI keyboard or controller keyboard is typically a piano -style electronic musical keyboard, often with other buttons, wheels and sliders, used as a MIDI controller for sending Musical Instrument Digital Interface ( MIDI) commands over a USB or MIDI 5-pin cable to other musical devices or computers. MIDI keyboards lacking an onboard sound ...

  6. Keyboard instrument - Wikipedia

    en.wikipedia.org/wiki/Keyboard_instrument

    A keyboard instrument is a musical instrument played using a keyboard, a row of levers that are pressed by the fingers. The most common of these are the piano, organ, and various electronic keyboards, including synthesizers and digital pianos. Other keyboard instruments include celestas, which are struck idiophones operated by a keyboard, and ...

  7. List of keyboard instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_keyboard_instruments

    A keyboard instrument is a musical instrument played using a keyboard, a row of levers which are pressed by the fingers. The most common of these are the piano , organ , and various electronic keyboards , including synthesizers and digital pianos .

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