Frequencies?

[Joseph Alkana]

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Stephen,
Thanks much for the enlightenment! By the way do you happen to know what =
the nomenclature is that audiologists use when describing tones in the =
normal piano range?

Joseph Alkana  RPT
josephspiano@attbi.com
  ----- Original Message -----=20
  From: Stephen Birkett=20
  To: pianotech@ptg.org=20
  Sent: Friday, February 22, 2002 9:36 PM
  Subject: Re: Frequencies?


  Joseph wrote:

  > trivia. Of course it still doesn't explain Stephen's switching back =
to =3D
  > the use of "b" in the last octave  :-)

  Ha ha. There's actually a very good reason. Knowing what y'all know =
about me you=20
  should be able to figure it...I pulled that list of frequencies off =
one of my=20
  spreadsheets which are mostly populated by historical pianos with =
compasses that don't=20
  generally exceed CC-g4, or AAA-a4 at the extreme. Consequently I had =
to add the extra=20
  couple of notes at the top and absent-mindedly used modern a#-b. See, =
there's a good=20
  reason behind everything. Try to deduce that, though, in hindsight, =
something that we=20
  try to do for things that historical builders did. You can see that =
many so-called=20
  "complexities" can often be attributed to something as trivial as =
this.=20

  No one commented on the old octave notation. In case you don't know it =
we have:
    CCC-BBB sub-contra-octave (bosies and Erards)
    CC-BB contra-octave
    C-B=20
    c-b (or c0-b0)
    c1-b1
    c2-b2
    c3-b3
    c4-b4

  Old five octave compass was FF-f3, and four-octave 17th C chromatic =
compass=20
  C-c3...both put c1 (middle c) in the geographic middle.=20

  Beethoven's reference to "contra E" in Op 109 was following that =
terminology, and was=20
  to emphasize his first official printed use of the sub-FF notes.=20

  Stephen

  Stephen Birkett Fortepianos
  Authentic Reproductions of 18th and 19th Century Pianos
  464 Winchester Drive
  Waterloo, Ontario
  Canada N2T 1K5
  tel: 519-885-2228
  mailto: birketts@wright.aps.uoguelph.ca







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