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  2. Musipedia - Wikipedia

    en.wikipedia.org/wiki/Musipedia

    This can be done by whistling a theme, playing it on a virtual piano keyboard, [1] tapping the rhythm on the computer keyboard, or entering the Parsons code. Anybody can modify the collection of melodies and enter MIDI files, bitmaps with sheet music (possibly generated by the Musipedia server after entering LilyPond or abc source code), lyrics ...

  3. Piano tuning - Wikipedia

    en.wikipedia.org/wiki/Piano_tuning

    Frequent and hard playing can also cause a piano to go out of tune. [2] For these reasons, many piano manufacturers recommend that new pianos be tuned four times during the first year and twice a year thereafter. [3] An out-of-tune piano can often be identified by the characteristic "honky tonk" or beating sound it produces. This fluctuation in ...

  4. Keystroke logging - Wikipedia

    en.wikipedia.org/wiki/Keystroke_logging

    Keystroke logging, often referred to as keylogging or keyboard capturing, is the action of recording (logging) the keys struck on a keyboard, [1] [2] typically covertly, so that a person using the keyboard is unaware that their actions are being monitored. Data can then be retrieved by the person operating the logging program.

  5. Musical tuning - Wikipedia

    en.wikipedia.org/wiki/Musical_tuning

    The pitches of open strings on a violin. Play ⓘ. In music, the term open string refers to the fundamental note of the unstopped, full string.. The strings of a guitar are normally tuned to fourths (excepting the G and B strings in standard tuning, which are tuned to a third), as are the strings of the bass guitar and double bass.

  6. Stretched tuning - Wikipedia

    en.wikipedia.org/wiki/Stretched_tuning

    In most musical instruments, the tone-generating component (a string or resonant column of air) vibrates at many frequencies simultaneously: a fundamental frequency that is usually perceived as the pitch of the note, and harmonics or overtones that are multiples of the fundamental frequency and whose wavelengths therefore divide the tone-generating region into simple fractional segments (1/2 ...

  7. Meantone temperament - Wikipedia

    en.wikipedia.org/wiki/Meantone_temperament

    Wolf intervals are an artifact of keyboard design, and keyboard players using a key that is actually in-tune with a different pitch than intended. [11] This can be shown most easily using an isomorphic keyboard, such as that shown in Figure 2. Figure 2: Kaspar Wicki's isomorphic keyboard, invented in 1896.

  8. Piano key frequencies - Wikipedia

    en.wikipedia.org/wiki/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).

  9. Pianoteq - Wikipedia

    en.wikipedia.org/wiki/Pianoteq

    The original version of the program was released in August 2006. [2] [3] The software's physically modeled synthesis create sound from scratch using several megabytes of mathematical algorithms (Fourier construction) to generate electric piano and acoustic piano sounds that can be manipulated analogously to those produced by their material counterparts.