October 1
Here is a turn of the last century, Ivers and Pond from Boston.
First, notice the agraffes on every string. They don’t provide the termination point; there is still a V-bar, but they keep the strings spaced evenly.
Notice also the detail that went into the scaling in the treble. The non-speaking length changes every six notes which corresponds to nine strings of the same thickness in each section. The point here was to try and make the inharmonicity effect more even as we go through the treble.
And finally, they are Aliquot Bars in the treble which provide a kind of duplex scale, the point of which was to improve the tone of the treble.
This piano, even with its worn hammers, has some of the nicest tone I’ve ever heard of in an old upright.
Test Your Ears for Piano Tuning! It doesn’t matter how you tune a piano – with an ETD or by ear – if you can’t hear beats, then you can’t tune a piano well.Beats are part of bad unisons and they are part of every test you will ever do to test the ETD. (You
Read MoreBeginning technicians are often advised to initially set F3-A3 to 7 beats per second (bps). Mathematically F3-A3 = 6.9 bps in equal temperament so it’s a good guess.After using the skeleton or contiguous M3’s also known as Jack’s Stack, we can refine F3-A3 to be more what the piano needs, but 7 bps is a
Read MoreI often read questions on piano technician forums from technicians asking how to regulate a specific piano. For example, recently someone posted this.“I’m regulating a piano and the book says to regulate blow distance at 1.5 inches”or“I can’t find any regulation specs for this specific piano in any books” The writing of these books implies
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