Allen, First of all, my method of pitch raising is to do it as one quick tuning unless the piano is more than a half step flat, which I have not yet encountered. I strip mute the entire piano, then begin to set a rough temperment which is usually sharp by a couple of beats. After that, I quickly tune up to the first break, then down to A1 and back to C88 tuning one string. Next, I start with the first bi-chord and tune the bi-chords up to the first trichord. Next, I tune the left hand string of each unison. The reason for this is that you can easily pull the strip out as you go up which exposes just the left string. Next, I either start back at the first trichord and do the right hand string going back up to C88, or start at C88 and come back down. This method has worked well for me, and I have not broken many strings as a result. The whole process takes 20 minutes to a half hour, and when I recheck the pitch, it is usually right on and ready for a complete tuning. The reason for not doing all three strings at once is that you do not want to add that much tension to one part of the piano, but rather to build the tension gradually over the instrument. Remember that when you are pitch raising, you are adding several thousand pounds of additional tension. Regards, Paul Kupelian, RPT kupelian@oswego.edu On Mon, 11 Mar 1996, Allen Leigh wrote: > >. Of course, I > > stripmute the whole piano and raise all the middle strings, then all the > > left strings, then all the right strings. > > What are the pro/con of doing the center strings first, as > described, vs. just doing all three strings on each note as you go? > > /Allen Leigh > So. Jordan, UT >
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