"Interesting that your piano showed a *rise* in pitch. The ones I have checked (small pso's) showed a drop in pitch with all three strings sounding." I think this is because you can tune on string, say to an SAT, tune the next by ear, check with SAT and it is flat. Tune to the SAT and compare unison and it is out. I have yet to come to an understanding of this, I just know it is so. Weird! If you tune the string that wants to be the lowest then the others that want to be sharp you should have a unison that is sharp instead of flat. Newton
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