Oops! I didn’t read all previous posts. My bad!
> Op 12 nov. 2017, om 15:56 heeft Lex van Sante <[email protected]> het 
> volgende geschreven:
> 
> Thomas Mace was deaf in his later years. He pressed his front teeth against 
> the edge of the soundboard and thus was able to hear what he was playing. He 
> describes this in his Musicks’ Monument in 1676.
>> Op 12 nov. 2017, om 15:33 heeft G. C. <[email protected]> het volgende 
>> geschreven:
>> 
>>  Very interesting discourse about Beethoven's deafness, several more
>>  available (in german) on YT. Thanks for the link Markus. Although it
>>  doesn't specify the nature of the hearing aid connected to the piano
>>  which was used, I assume that all hasn't yet been said in this matter.
>>  G.
>> 
>>  On Sun, Nov 12, 2017 at 2:14 PM, Markus Lutz <[1][email protected]>
>>  wrote:
>> 
>>  I'm not sure that this is a myth.
>>  There is a youtube video in German by the medical society of Mainz
>>  about Beethoven's deafness and his relation to Johann Nepomuk Mälzel
>>  (the inventor of the metronome).
>>  Beethoven used his ear trumpets and Mälzel also constructed a
>>  mechanism that was set on the piano and transported the sound directly
>>  to the ear (around 46m).
>>  [2]https://www.youtube.com/watch?v=V9Lj8Qy2Ilk&t=2965s
>>  Best regards
>>  Markus
>>  Am 11.11.2017 um 23:31 schrieb G. C.:
>> 
>>        A myth then apparently. Interesting though, that:
>>        The "phenomenon" of bone conduction is generally credited as
>>    being
>>        discovered in the 1500s (though some say it can be traced back
>>    to
>>        around 2AD). A physician, mathematician, philosopher and
>>    all-around
>>        brilliant fella' by the name of Girolamo Cardano noticed that it
>>    was
>>        possible to hear through a rod or spear when placed between the
>>    teeth.
>>        He detailed his findings in his controversial publication De
>>        Subtilitate, but the information hadn't really been applied to
>>        anything, let alone to help the deaf or hearing-impaired, until
>>    later.
>>        G.
>>        On Sat, Nov 11, 2017 at 7:44 PM, John Mardinly
>>        <[1][3][email protected]> wrote:
>>        Beethoven's deafness was caused by "inner ear" problems,
>>    sometimes
>>        called labyrinthitis, a form of nerve deafness, not mechanical
>>        problems, such as damage to the eardrum or the small bones of
>>    the inner
>>        ear. As such, it is unlikely that the bone conduction would have
>>    been
>>        any use to him.
>>        A. John Mardinly, Ph.D., P.E.
>>        --
>>    References
>>        1. mailto:[4][email protected]
>>    To get on or off this list see list information at
>>    [5]http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
>> 
>>  --
>>  Markus Lutz
>>  SchulstraÃe 11
>>  88422 Bad Buchau
>>  Tel   0 75 82 / 92 62 89
>>  Fax   0 75 82 / 92 62 90
>>  Mail [6][email protected]
>> 
>>  --
>> 
>> References
>> 
>>  1. mailto:[email protected]
>>  2. https://www.youtube.com/watch?v=V9Lj8Qy2Ilk&t=2965s
>>  3. mailto:[email protected]
>>  4. mailto:[email protected]
>>  5. http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
>>  6. mailto:[email protected]
>> 
> 
> 
> 



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