[pianotech] Do fourths beat faster?

[Ed Sutton]

David's right. Because of inharmonicity and octave stretching, fourths and fifths progress more slowly in the mid-range of the piano. I suppose on organs they follow the octave/double rule.
Read Dan Levitan's 2007-08 series to understand this. Plan on studying for 2 or 3 weeks and taking notes!
Remember that on piano we are tuning "Imitation ET," which is not the same as theoretically perfect ET.

Ed Sutton

ps I apologize for the blank messages. If you have Windows Vista with erratic slowdowns, you know why.
  ----- Original Message ----- 
  From: David Andersen 
  To: pianotech at ptg.org 
  Sent: Friday, February 06, 2009 1:01 AM
  Subject: Re: [pianotech] Do fourths beat faster?


  Brother, I beg to differ. The fourths and fifths stay the same rate all the way up and down the scale---at least in idealized equal temperament, which what what I use.
  David Andersen




  On Feb 5, 2009, at 9:43 PM, Scott Jackson wrote:


    Yep, every interval beats faster as you move up; by the time you reach an octave higher, twice as fast.

    Scott Jackson

      ----- Original Message -----
      From: Byron
      To: pianotech at ptg.org
      Sent: Friday, February 06, 2009 1:08 PM
      Subject: [pianotech] Do fourths beat faster?


      Do fourths beat faster as they climb chromatically? How about fifths?

      Thanks

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