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  2. Stretched tuning - Wikipedia

    en.wikipedia.org/wiki/Stretched_tuning

    Stretched tuning is a detail of musical tuning, applied to wire-stringed musical instruments, older, non-digital electric pianos (such as the Fender Rhodes piano and Wurlitzer electric piano), and some sample-based synthesizers based on these instruments, to accommodate the natural inharmonicity of their vibrating elements.

  3. Piano tuning - Wikipedia

    en.wikipedia.org/wiki/Piano_tuning

    A man tuning an upright piano. Piano tuning is the process of adjusting the tension of the strings of an acoustic piano so that the musical intervals between strings are in tune. The meaning of the term 'in tune', in the context of piano tuning, is not simply a particular fixed set of pitches. Fine piano tuning requires an assessment of the ...

  4. Piano acoustics - Wikipedia

    en.wikipedia.org/wiki/Piano_acoustics

    The Railsback curve shows how a piano tuned to compensate for inharmonicity deviates from theoretically correct equal-tempered tuning. The Railsback curve, first measured in the 1930s by O.L. Railsback, a US college physics teacher, expresses the difference between inharmonicity-aware stretched piano tuning, and theoretically correct equal-tempered tuning in which the frequencies of successive ...

  5. Piano key frequencies - Wikipedia

    en.wikipedia.org/wiki/Piano_key_frequencies

    For other tuning schemes, refer to musical tuning. This list of frequencies is for a theoretically ideal piano. On an actual piano, the ratio between semitones is slightly larger, especially at the high and low ends, where string stiffness causes inharmonicity, i.e., the tendency for the harmonic makeup of each note to run sharp.

  6. Piano - Wikipedia

    en.wikipedia.org/wiki/Piano

    Piano Grand piano Upright piano Keyboard instrument Hornbostel–Sachs classification 314.122-4-8 (Simple chordophone with keyboard sounded by hammers) Inventor(s) Bartolomeo Cristofori Developed Early 18th century Playing range The Well-Tempered Clavier, first prelude of Book I Played by Kimiko Douglass-Ishizaka Problems playing this file? See media help. A piano is a keyboard instrument that ...

  7. Apple approaches $4 trillion valuation as investors bet on AI ...

    www.aol.com/news/apple-approaches-4-trillion...

    (Reuters) -Apple is closing in on a historic $4 trillion stock market valuation, powered by investors cheering progress in the company's long-awaited AI enhancements to rejuvenate sluggish iPhone ...

  8. Pregnant Woman Discovers Lump in Breast While Applying Body ...

    www.aol.com/woman-discovers-cancerous-lump-9...

    Nine months pregnant with her first child in January 2024, Marissa Sweitzer was slathering herself in body butter to prevent stretch marks when she felt a lump in her left breast. “I was ...

  9. List of chordophones by Hornbostel–Sachs number - Wikipedia

    en.wikipedia.org/wiki/List_of_chordophones_by...

    322.21 Without tuning mechanism. 322.211 Diatonic frame harps. 322.212 Chromatic frame harps. 322.212.1 With all strings in one plane. 322.212.2 With strings in two planes crossing each other. 322.22 With tuning action. 322.221 With manual tuning action. 322.222 With pedal action.