05/20/2021
What does it mean when your piano technician says that "the pitch needs to be raised on your piano"?
You've decided to have your piano tuned because a) it sounds terrible, b) it's been years since it's been tuned, c) your grandson can't play his trumpet in tune with the piano while you play along...I could go on, but the bottom line is that your piano has gone super flat or low in pitch. This happens because your piano is a living, breathing thing. It is made of many types of woods and metals, all which are affected by weather, humidity, where it sits in your house, age, and care. Eventually, most piano will end up flat, though at times they'll go sharp, then flat, then sharp, then flat, fluctuating by the minute. The piano ends up very out of tune, which causes you to suddenly sit up one day and say, "it's time to tune this piano!"
So, raising the pitch on a piano means bringing the piano up to (or sometimes down to) the pitch or string tension it was built to hold. For most modern pianos that is a tuning based around A440, the A above middle C vibrating at 440 beats a second (440 hertz). When your piano is tuned to pitches based on A440 it is going to be a happy piano because it is at the correct string and body tension. It will sound brighter and better, and, once the piano is fully tuned, it will be in tune and your grandson can play his trumpet along with the piano.
What this means for the technician is more time spent at the piano pulling the strings up to the correct tension (pulling the strings up to pitch), then going back and tuning the piano one to two more times to get those strings to stay where they need to stay. You will find that the cost is more to have your piano brought up to pitch. That is because the technician is spending more time with your piano.
The good news is that you can prevent your piano having to be pulled up to pitch by having it tuned every 6 months or so. This keeps the strings from moving so far away from a tuning based on A440. The technician only has to tune the piano to A440 and gets to avoid the pulling up in pitch work.
Keep your piano tuned for its health and for your playing enjoyment. And think how great your grandson's trumpet playing will sound playing alongside your in tune piano!