Bass Overtones

James Grebe pianoman@accessus.net
Mon, 30 May 2005 09:43:01 -0500


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I wonder if this is what Shincrhrotone bass strings were in the Baldwins
James Grebe
Piano-Forte Tuning & Repair
Creator of Handsome Hardwood Caster Cups, piano benches, writing =
instruments
(314) 608-4137
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Arnold, MO 63010
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pianoman@accessus.net
  ----- Original Message -----=20
  From: Donald Mannino=20
  To: Bruce Gibson Piano Technician ; Pianotech=20
  Sent: Friday, May 27, 2005 9:59 PM
  Subject: Re: Bass Overtones


  Bruce,

  These are most likely longitudinal waves, and are part of the string =
scale of the piano.  Each piano will pick up on them differently, but =
they are audible to some degree or another on almost all pianos.  You =
can change the scale of those notes to shift the tones to a different =
(and hopefully less bothersome) pitch, but it will also change the tone =
quality at the same time.

  These are also greatly accentuated by voicing condition and room =
acoustics.  If the piano is in a live room, then adjusting the piano =
location or adding absorption to the room will change the relative =
loudness of these tones.  It will not eliminate it altogether.

  You might call us at Kawai if you would like to discuss it.  I will be =
back in the office next Wednesday if you would like to call me then.

  Don Mannino RPT
  Kawai America



  At 10:46 PM 5/26/2005, you wrote:

    Hello everyone.
    =20
    Bruce Gibson in Saskatoon, Saskatchewan, Canada here.
    =20
    I have a client who has a Kawai RX-2. We changed the bass strings to =
GC Piano Co. strings because the client was complaining about obnoxious =
overtones. Many of the offending overtones are still there.=20
    =20
    Any suggestions as to how I might go about eliminating them, or at =
very least reducing them. I've tried voicing the hammers...with not =
audible change.
    =20
    Look forward to your input.
    =20
    Thank you.
    =20
    Bruce
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