<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>In a message dated 9/17/01 12:34:18 PM Central Daylight Time, RNossaman@KSCABLE.com (Ron Nossaman) writes:
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<BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">I had strip muted the piano, struck my fork, and had it to my ear when she
<BR>walked past just behind me. Waw-aow-weow-wuh-wa-wa! Wow, now that was
<BR>interesting. Doppler shifted echoes from my fork bouncing off a moving
<BR>person.</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"></BLOCKQUOTE>
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<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">It seems to me that it is this same Doppler effect that occurs when there is a ceiling fan running near the piano. This is another example of how to fix a piano that "went right out of tune that afternoon" over the phone. If the customer says the piano has a strange, "quivering" sound or anything about strange tone or being suddenly out of tune, be sure to ask if there is a ceiling fan running. I've gone on enough service calls to ask that question first.
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<BR>Bill Bremmer RPT
<BR>Madison, Wisconsin</FONT></HTML>