----- Original Message ----- From: "Bill Ballard" <yardbird@vermontel.net> To: "Pianotech" <pianotech@ptg.org> Sent: Wednesday, April 30, 2003 3:00 PM Subject: Re: performer compensation for time differential > At 10:55 AM -0700 4/30/03, Delwin D. Fandrich wrote: > >A variable time lag depending on the level of play and on pitch? What causes > >the variations? > > Mainly the volume (cubic space: length and bore of the tube) of the > air column being activated. Air is far more compressible than steel, > and thus takes longer to give itself to a standing wave. Think high-C > on a trumpet vs. the bottom note on a Wagnerian tuba. > > Bill Ballard RPT Thanks--I see. Interesting, and, of course, it makes sense now that you point it out. Del
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