What Is a Piano Pitch Correction? The “Break-It-In Tuning” Explained

If your piano hasn't been tuned for a while, it may need more than a normal fine tuning to bring it back to proper pitch. This is called a pitch correction or pitch raise.

When a piano needs a significant pitch correction, I sometimes call the first service a “break-it-in tuning.”

During a break-it-in tuning, I first correct the overall pitch of the piano and then go through the instrument again to fine-tune it. After that, you play it, enjoy it, and break it in.

Because a substantial pitch correction changes the tension throughout the instrument, the piano may continue to settle afterward. For most home pianos, tuning about once a year is a good general guideline, but a pitch-corrected piano may benefit from another tuning sooner.

And you don't need to figure out whether your piano needs a pitch correction before scheduling. Pitch correction is included with my standard piano tuning when necessary.

Why Does a Piano Need a Pitch Correction?

Modern pianos are generally tuned so that A above middle C is at 440 Hz, commonly called A440. Over time, changes in humidity, temperature and the piano's environment can cause the instrument to drift away from that standard.

Here in Colorado, our dry climate and seasonal changes can make these fluctuations especially noticeable.

A piano contains more than 200 strings under a tremendous amount of combined tension. When a piano has drifted significantly sharp or flat, bringing all those strings back toward their proper pitch changes the overall tension of the instrument.

As I'm making that correction, notes I've already adjusted can move again as the rest of the piano is brought into line. That's why a significantly out-of-pitch piano often can't simply be fine-tuned in a single pass.

What Happens During a Pitch Correction?

I start by bringing the piano's overall pitch back toward the proper level. The purpose of this first pass isn't to make every note perfect. It's to make the larger correction in string tension across the instrument.

Once the piano is much closer to its target pitch, I go through it again and perform the fine tuning. Depending on how far the piano has drifted, the process may involve multiple passes or smaller corrections along the way.

When a substantial correction is necessary, this entire initial service—pitch correction followed by fine tuning—is what I call a break-it-in tuning.

Then it's your turn.

Why Do I Call It a “Break-It-In Tuning”?

Because after I finish tuning it, you're going to break it in.

Bringing a piano significantly back toward A440 changes the tension across the entire instrument. Even after I've completed the fine tuning, the piano may continue to settle as it adjusts to that change.

So play it.

There's no need to baby the piano or avoid using it. Play your music and enjoy the instrument. As it gets played and settles into its corrected tension, you're essentially breaking in the tuning.

For most home pianos, about once a year is a good general tuning schedule. But after a significant pitch correction, I may recommend another tuning sooner rather than waiting a full year.

That next tuning gives me an opportunity to refine things again after the piano has had some time to settle.

The basic idea is:

Break-it-in tuning (pitch correction + fine tuning) → play the piano and let it settle → tune again sooner if needed → regular maintenance.

How Far Off Does a Piano Have to Be?

There's no single number where every piano suddenly requires a pitch correction.

If a piano is only a few cents away from pitch, I can usually make those adjustments during the normal tuning process. If much of the instrument is 10, 20, 30 cents—or more—away from the target, a preliminary pitch correction becomes increasingly important.

I make that decision based on how far the piano has moved, how evenly it has moved, and the overall condition of the instrument.

You don't need to measure any of this yourself. That's part of what I'm evaluating when I begin the appointment.

Why Do Pianos Drift Away From A440?

Humidity is one of the biggest factors.

A piano's wooden soundboard absorbs and releases moisture as environmental conditions change. As the soundboard changes slightly in shape, the tension on the strings changes with it, causing the piano's pitch to move.

Colorado presents its own challenges because of our generally dry climate and seasonal changes in indoor humidity.

And a piano doesn't have to be played heavily to go out of tune. An instrument can sit untouched and still drift because its environment continues changing around it.

That's why a piano that hasn't been played in years may still require a substantial pitch correction.

Is a Pitch Correction Safe for the Piano?

For a structurally sound piano, carefully bringing the instrument back to standard pitch is a normal part of piano service.

Before making a substantial pitch change, I consider the condition of the instrument. If a piano is very old, hasn't been serviced for decades, has rusty strings, loose tuning pins, structural problems or other significant issues, I'll evaluate those factors before making a large change in tension.

In some cases, an older or compromised instrument may be better served by tuning it to a pitch other than A440.

Every piano is different, which is why I evaluate the instrument before deciding how to proceed.

Is Pitch Correction Included in My Tuning?

Yes.

Pitch correction is included with my standard piano tuning when it's needed.

You don't need to determine whether your piano needs a regular tuning, pitch correction or break-it-in tuning before scheduling.

Just book a piano tuning. I'll evaluate the instrument when I arrive and take it from there.

If it needs a pitch correction, I'll make the larger adjustment first and then fine-tune the piano.

What If My Piano Hasn't Been Tuned in Years?

That's okay.

I've encountered pianos that are remarkably close to pitch after years without service and others that have moved substantially in a much shorter period.

If your piano hasn't been tuned in five, ten or even twenty years—or you simply have no idea when it was last tuned—I'll evaluate its pitch and condition and determine the best approach.

If it needs a significant pitch correction, I'll perform the break-it-in tuning, and then you can start playing it.

Depending on how much correction was required and how the instrument settles, I may recommend its next tuning sooner than the normal annual interval.

How Often Should a Piano Be Tuned?

For most home pianos, about once a year is a good general guideline.

Pianos that are played heavily, used professionally or exposed to significant environmental changes may benefit from more frequent tuning. Schools, churches, teaching studios, recording studios and performance instruments may also require more frequent service.

A piano that has just received a significant pitch correction is a little different. Because the instrument has undergone a larger change in tension, I may recommend tuning it again sooner while everything settles.

Once the piano is stable and receiving regular maintenance, annual tuning is generally a good starting point for a home instrument.

Piano Tuning in Littleton, Denver, Boulder & the Colorado Front Range

I'm based in Littleton and provide professional piano tuning and service throughout the Denver metro area, Boulder and the Colorado Front Range.

Whether your piano was tuned last year or you can't remember the last time anyone worked on it, you don't need to diagnose it before making an appointment.

Book a piano tuning and I'll take it from there. If it needs a pitch correction, that's included. I'll tune it, then you get to break it in.