To look at a comparison, check out the Verituner site. Dave spent a bunch of time with two pianos, charting the measured inharmonicity of each note, then with a spreadsheet that calculates beatrates of different octaves, plugged in the numbers with the calculations of the different machines. Yamaha U1 and a Baldwin upright. Go to Veritune.com then click on: View our ETD Comparison Chart Even though you may not have noticed much difference in the spinner/lights, those differences could easily be over a cent, enough to make an octave work, or just kinda work. Ron Koval _________________________________________________________________ MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*. http://join.msn.com/?page=features/virus
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