What is a pitch raise, and why is it necessary?

What is a pitch raise, and why is it necessary?

When a piano has not been regularly maintained, it often drifts very far from its target pitch center. Most pianos are manufactured to perform optimally at A440: with the note A4 being tuned to 440hz and everything else tuned to that. When a piano has been neglected for a number of years, it's not uncommon for it to be as much as 100-200 cents flat - 100 cents being the distance between two notes on a piano. In other words, a piano that is 100 cents flat sounds a B when you play an C. This is a problem for many practical reasons, but the most basic is that the piano is designed to work and sound best at a certain level of tension on the strings, and anything significantly less is compromising the performance of the instrument. The other fact that many piano owners do not realize is that pianos do not go uniformly out of tune. As you can see...
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Pitch raise

This piano was more than a half step flat! Tuning something this poorly maintained is not much fun, but the task is made much easier by an ETD (Electronic Tuning Device). If you watch the display carefully, you can see, as well as hear, each of the three strings rise in pitch until they are all at the target pitch. Customers often ask about the difference between tuning by ear (aurally) vs. using an electronic device. Some people hold to strong positions one way or the other. At the end of the day, the quality of the tuning is what matters! I use both methods, but I tend toward mostly aural for fine tuning quality instruments, and mostly electronic for a first-pass pitch raise like this, where all you can expect is to get it in the ballpark. ...
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