Very similar to what Segovia used, and certainly about the best there
   was mid-20th century, but no comparison to 1500 grit 3M silicon carbide
   papers.

   A. John Mardinly, Ph.D., P.E.

   On May 7, 2019, at 2:57 PM, M Del <[1]terli...@aol.com> wrote:

   My first guitar teacher Rolando Valdes-Blain taught his students to use
   finely crushed pumice stone and leather from a deer (it happened to be
   a piece from a hunter friend).Rolando was old enough to play on gut
   strings until he came back from WW2.
   Sent from my iPhone

     On May 7, 2019, at 5:20 PM, magnus andersson
     <[2]maan7...@cs.dartmouth.edu> wrote:
      Dear collective wisdom,
      From what I have understood, it seems like manicure has been around
      since  at least 3200 BC, so I assume players like Piccinini,
     Corbetta
      (who we know had
      to cancel one of his concerts due to a broken nail- and still pay
     his
      fellow musicians from his own pocket!) and perhaps de Visée had
     found
      a way for them to get it to work without shredding and tearing
     their
      strings apart constantly, and - to quote Piccinini:
      "the one, and very important [thing] is to play neatly, and
     cleanly; In
      the manner that all small touches of the string may be schietto,
     like
      pearl[s]"
      /Magnus
      On Tuesday, May 7, 2019, 10:45:44 PM GMT+2, John Mardinly
      <[3]john.mardi...@asu.edu> wrote:
        Pure speculation. Where are the facts? Can anyone document good
     nail
        polishing techniques that may have been used centuries ago? I
     would
        love to see it. Techniques used to polish things from telescope
      lenses
        and mirrors to razors would not work well on fingernails. The
     chamois
        stropping technique used by Segovia because there was not much
     better
        in the mid 20th Century would be deemed laughable today among
     those
      who
        play with nails.
        A. John Mardinly, Ph.D., P.E.
        On May 7, 2019, at 4:48 AM, Yuval Dvoran
      <[1][1][4]yuval.dvo...@posteo.de>
        wrote:
        Hahahaha good point!
        To add something substantial to the discussion, I'd like to
     remember
        you that also plants exist which were used for thousands of years
     to
        polish wood (and maybe also fingernails), e.g. Equisetum
        ("Schachtelhalm" in German).Am 07.05.2019 13:31 schrieb jslute
        <[2][2][5]jsl...@cs.dartmouth.edu>:
              Dear All:
              Might I suggest that a culture sophisticated enough to
     build
          lutes and
              craft overwound strings could have figured out a way to
     file
      and
          polish
              their nails.
              Jim Stimson
              Sent from my Verizon, Samsung Galaxy smartphone
              -------- Original message --------
              From: John Mardinly <[3][3][6]john.mardi...@asu.edu>
              Date: 5/6/19 6:51 PM (GMT-05:00)
              To: Roland Hayes <[4][4][7]rha...@legalaidbuffalo.org>
              Cc: Lute List <[5][5][8]lute@cs.dartmouth.edu>
              Subject: [LUTE] Re: De Visee
              More lacking than glue-on-nails might have been some of the
          modern
              files and abrasives used to polish the nails. Badly
     prepared
          nails give
              a terrible result for both sound and playability. My
     teacher
      back
          in
              1965 had studied with Segovia, and showed me how Segovia
      prepared
          his
              nails: after some filing, he used a wooden block with a
     saw-cut
          slot in
              it and a piece of chamois wrapped around the wooden block.
     The
          nail was
              then rubbed back and forth on the chamois over the slot,
     which
          acted as
              a track to guide the nail. When I began to study metallurgy
     and
          the art
              of cross-sectioning and polishing metals to view their
          microstructure,
              I experienced a revolution in materials to polish the nails
      that
          were
              quickly adopted by many people playing with nails.
              A. John Mardinly, Ph.D., P.E.

     On May 6, 2019, at 3:34 PM, Roland Hayes

          <[6][6][9]rha...@legalaidbuffalo.org>
              wrote:

     Do we think he played with nails? Lutenists did not as I

              understand,

     but
     I have always thought his lute pieces were merely

          arrangements of

     guitar/theorbo pieces. For those instruments we can

      establish
          the
              use

     of nails.
     And if deVisee played guitar with nails, then he most likely

          played

     theorbo with nails as well. Yes? Glue on nails had yet to

          arrive on
              the

     scene.
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     References
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     ms_ghei3
          6&d=Dw
      IBAg&c=l45AxH-kUV29SRQusp9vYR0n1GycN4_2jInuKy6zbqQ&r=VLPJ8OE-c_C6jo
     G
          eE1
      
ftlvxMmQPq9N6mpKZONBRt90E&m���1m2M37zO3KCb5uTRtTMLYbh6c_tcz94
     RkH1
      fvv
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              =ctn5UU2dPJsBEQxzJcHstOUeERuDkBtXhs4pd0M0t-c&e=

     To get on or off this list see list information at

      [9][9][12]https://urldefense.proofpoint.com/v2/url?u=http-3A__www.c
     s.dartmo
          uth.ed
      u_-7Ewbc_lute-2Dadmin_index.html&d=DwIBAg&c=l45AxH-kUV29SRQusp9vYR0
     n
          1Gy
      cN4_2jInuKy6zbqQ&r=VLPJ8OE-c_C6joGeE1ftlvxMmQPq9N6mpKZONBRt90E&m�
     �ï
      ¿½1
          m2M37
      zO3KCb5uTRtTMLYbh6c_tcz94RkH1fvvJqg&s=9RqBccAKKlP3oVcnl4UNupxF1MvNw
     _
          jgZ
              4VyNvSGyDk&e=
      References
        1. mailto:[10][13]yuval.dvo...@posteo.de
        2. mailto:[11][14]jsl...@cs.dartmouth.edu
        3. mailto:[12][15]john.mardi...@asu.edu
        4. mailto:[13][16]rha...@legalaidbuffalo.org
        5. mailto:[14][17]lute@cs.dartmouth.edu
        6. mailto:[15][18]rha...@legalaidbuffalo.org
        7. mailto:[16][19]i...@legalaidbuffalo.org
        8.
      [17][20]https://urldefense.proofpoint.com/v2/url?u=https-3A__aka.ms
     _ghei36&
      d=Dw
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     dartmout
      h.ed
      --
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      2. [23]mailto:jsl...@cs.dartmouth.edu
      3. [24]mailto:john.mardi...@asu.edu
      4. [25]mailto:rha...@legalaidbuffalo.org
      5. [26]mailto:lute@cs.dartmouth.edu
      6. [27]mailto:rha...@legalaidbuffalo.org
      7. [28]mailto:i...@legalaidbuffalo.org
      8.
     [29]https://urldefense.proofpoint.com/v2/url?u=https-3A__aka.ms_ghei
     3
      9.
     [30]https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartm
     o
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     11. [32]mailto:jsl...@cs.dartmouth.edu
     12. [33]mailto:john.mardi...@asu.edu
     13. [34]mailto:rha...@legalaidbuffalo.org
     14. [35]mailto:lute@cs.dartmouth.edu
     15. [36]mailto:rha...@legalaidbuffalo.org
     16. [37]mailto:i...@legalaidbuffalo.org
     17.
     [38]https://urldefense.proofpoint.com/v2/url?u=https-3A__aka.ms_ghei
     36&d=Dw
     18.
     [39]https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartm
     outh.ed

References

   1. mailto:terli...@aol.com
   2. mailto:maan7...@cs.dartmouth.edu
   3. mailto:john.mardi...@asu.edu
   4. mailto:yuval.dvo...@posteo.de
   5. mailto:jsl...@cs.dartmouth.edu
   6. mailto:john.mardi...@asu.edu
   7. mailto:rha...@legalaidbuffalo.org
   8. mailto:lute@cs.dartmouth.edu
   9. mailto:rha...@legalaidbuffalo.org
  10. mailto:i...@legalaidbuffalo.org
  11. https://urldefense.proofpoint.com/v2/url?u=https-3A__aka.ms_ghei3
  12. https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartmo
  13. mailto:yuval.dvo...@posteo.de
  14. mailto:jsl...@cs.dartmouth.edu
  15. mailto:john.mardi...@asu.edu
  16. mailto:rha...@legalaidbuffalo.org
  17. mailto:lute@cs.dartmouth.edu
  18. mailto:rha...@legalaidbuffalo.org
  19. mailto:i...@legalaidbuffalo.org
  20. https://urldefense.proofpoint.com/v2/url?u=https-3A__aka.ms_ghei36&;
  21. https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartmout
  22. mailto:yuval.dvo...@posteo.de
  23. mailto:jsl...@cs.dartmouth.edu
  24. mailto:john.mardi...@asu.edu
  25. mailto:rha...@legalaidbuffalo.org
  26. mailto:lute@cs.dartmouth.edu
  27. mailto:rha...@legalaidbuffalo.org
  28. mailto:i...@legalaidbuffalo.org
  29. https://urldefense.proofpoint.com/v2/url?u=https-3A__aka.ms_ghei3
  30. https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartmo
  31. mailto:yuval.dvo...@posteo.de
  32. mailto:jsl...@cs.dartmouth.edu
  33. mailto:john.mardi...@asu.edu
  34. mailto:rha...@legalaidbuffalo.org
  35. mailto:lute@cs.dartmouth.edu
  36. mailto:rha...@legalaidbuffalo.org
  37. mailto:i...@legalaidbuffalo.org
  38. https://urldefense.proofpoint.com/v2/url?u=https-3A__aka.ms_ghei36&d=Dw
  39. https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.dartmouth.ed

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