Ronisch Bass

[Joe & Penny Goss]

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Hi  Tony,
You might try moving the piano out from the wall, then taking a long =
steel rod like a screwdriver bit for the combo handle press the end of =
the rod against the rib close to where the note crosses the bridge and =
at other points on the sound board bridge area.=20
If the sound quality improves, place jiffy leads that have screw holes =
at the point where the sound improves the most.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
  ----- Original Message -----=20
  From: Tony Caught=20
  To: pianotech@ptg.org=20
  Sent: Sunday, April 15, 2001 2:27 AM
  Subject: Ronisch Bass


  List

  A music teacher in Darwin has just bought a new Ronisch piano. Approx. =
125CM high, made in Leipzig, Germany by ???. Not Ronisch. Has a Renner =
action, lovely cabinet but the bass.

  I can't say lousy choice of piano, she paid cash to a major store in =
Sydney, played the piano several times before deciding, all the right =
things but.

  I tuned the piano yesterday (raised pitch from 20 cents to 65 cents =
flat) and she played it after and said 'C1 doesn't sound right' Checked =
it by ear and all is OK, asked her what she thought was wrong to which =
she replied that it 'sounded more like a G note' asked her how her pitch =
recognition was to which she replied 'pitch perfect' switched on =
computer and clicked onto the new TuneLab Pro, played C1 and checked the =
partials. Partial 3 =3D 100 partial 4 =3D 45..

  Showed this to customer and explained that the fundamental is very low =
(absent) in the lower bass but the harmonics are very rich, what she is =
hearing is the 3rd harmonic of C which is G.

  Tuned the note up, she tested, tuned the note down, she tested, put it =
back where it was, she tested and said now its OK.

  I didn't like the scaling of the bass, the treble was OK but the bass =
?

  Question.

  Why is this C1 note so heavy on the 3rd partial and so low on the 2nd =
and 4th. And, how can you increase the 2nd and 4th to make it sound like =
a "C" note. ?

  Tony Caught ICPTG
  Australia
  caute@optusnet.com.au

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