Here is the way I tuned my piano today. I thought some who own TunelabPro might be interested in it. It gives results very much like I like to tune aurally. TlabPro procedure 11-30-01 After measuring inharmonicity on 6C's, go into the "T" curve adjusting mode by pressing the letter "T". Set Bass for 6-3 matching with the drop down menu. Set the Treble for 3:2 matching with the treble dropdown menu. Use the 4-arrow adjusting method and press the up or down arrows to make the lower deviation curve a relatively straight line in the Bass and more or less the same for the treble side of the curve. There may be a slight deviation from the straight line in the high treble but you can ignore that for the moment. Of course, the Tuning curve in the upper half of the "T" curve display will sweep upward in a typical exponential curve which is a little like the flare of a trumpet bell. Press ESC to get back to the Tuning mode display and tune downward from A4 to the Tenor break. This will give you pure 5ths and will graduate into the 6-3 octave mode as you approach the Bass. Test all aural intervals available to make sure there were no lapses in your eye judgments. If you notice any variations from smooth beat rate progressions, recheck the display of all the notes involved. Next touch the "T" to readjust the Tuning curve. Change the Treble side to 4-2 matching. Now looking at the lower deviation curve, utilize the 4 arrow mode to adjust the curve in a relatively straight line. The software will keep the note C8 on the zero line. If the curve has a slight upward curve just to the left of the C8, but the rest of the line is fairly straight, this will give a good tuning at least up to C6. Press ESC and tune from A4 up to C6. Take note of the value of the C6 tuning. When you get to C6 press "T" to get back into the curve adjustment area. Change the Treble side to 8-1 matching. With the up or down arrow in the treble section adjust the deviation curve to a more or less straight line again and check the value for the C6 block in the upper tuning curve. Adjust the arrows until the value is the same as was noted previously. This should give you a relatively straight line again in the lower display with perhaps a slight variation within the top octave. A simple way of doing this is to place the cursor on the block representing the C6 on the Tuning curve and then using the "I" and "K" keys in place of the arrows to make the adjustments until the C6 value is the same as before. Press the ESC key to get back to the tuning display. This type of tuning in the treble will give a balance between double octave tuning, pure octave 5ths, double octave 5ths and triple octaves. This will result in top single octaves with beats of 4 or 5 per second, but will make the high treble sound more "in tune" melodically. Tuning down into the Bass using 6-3 octave matching works well for most all pianos. By the time you get down to C2 it might be well to have a little more stretch for medium or larger pianos. Note the tuning value of C2, then press "T" to get into the curve adjustment display. Change to 8-2 double octave matching to get a little more stretch. Place the cursor on the note C2 in the upper tuning curve and use the "U" and "J" keys to adjust the lower deviation curve to make a more or less straight line in the Bass side of the curve so that in the value for C2 in the upper right corner of the screen you have a value very close to what you remembered from before the change from 6-3 tuning. This will make a smooth transition from 6-3 tuning to the 8-2 type tuning. If all this sounds too complicated, whoever said piano tuning was easy, that's why they pay us the big bucks. Actually "doing it" is much simpler than writing about it. Once one understands the principle, the doing is really quite easy for the experienced tuner. Jim Coleman, Sr.
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