"David M. Porritt" <dporritt@post.cis.smu.edu> wrote: > Howard: > > Yes, it is easy to check with an ETD, and yes on some notes there is a > drop. > Why???? I have no idea! I noticed that effect using a cheap chromatic guitar tuner. Since I was tuning my piano when it needed a pitch raise (it has since stablized after several tunings), I didn't make much of it. But I still notice the tuner flickering to the "flat" side sometimes when I measure with all three strings. Now, the question is whether the note is actually flat, or whether the electronic device gets confused somehow. I'd like to see it measured on a $20,000+ oscilloscope. Charles Neuman
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