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Ear Training for Piano Tuners – Beat Speed Difference Sensitivity Test

Ear Training for Piano Tuners - Beat Speed Difference Sensitivity Test

How good is your beat speed difference sensitivity?

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            Results
Testing Beat Speed Difference Sensitivity (BSDS) of:
Consecutive correct answers at this BSDS:
Your Choice:

Beat Speed Difference Ratio Test Results COMING SOON

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Beat Speed Difference Ratio Test

Contiguous Major Thirds/M3's Skeleton Test

Contiguous Major Thirds/M3's Skeleton Test

When tuning contiguous major thirds, that is, major thirds that share a note, easily imagined as an augmented chord such as F3A3C#4 for example, the beat speeds of these thirds in equal temperament change about 26% from one to the other (when no inharmonicity is considered.).

The Skeleton (See HERE) is a method I teach that requires the tuner to tune one beat speed exactly between two other beat speeds.

Exactly between means so that the beat speed ratios are the same. For example, 10, 11, and 12 are not even because 10 to 11 is 10%, but 11 to 12 is 9.1%. The correct beat speed progression would be 10, 10.95(9.5%), and 12(9.5%).

TEST YOUR BEAT SPEED DIFFERENCE SENSITIVITY

1. Tune C#4 so that F3A3/A3C#4 and C#4F4 all change speed evenly, i.e. make the beat speeds increase or decrease by the same ratio.
(This is the first step in tuning the Skeleton, called the Lower Skeleton.)

Note: The waveforms take time to load into your cache. You may have to play them a second time so that both notes sound at the same time.

Click the TEST RESULTS link below the test to see the answers.





Your C#4 number:

TEST RESULTS

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What was your C#4 number?

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Beat Speed Difference Ratio Test Results

New Skeleton Results

Beat Speed Difference Sensitivity

Aural piano tuners listen to beats when they tune a piano. Beats are produced when intervals are not pure. Because of Equal Temperament, most intervals on the piano cannot be tuned pure.

Piano tuners listen to these beat speeds and compare them to each other in a prescribed pattern in order to produce equal temperament.

Here are some beat speed differences for common equal temperament intervals:

Contiguous Major Thirds (e.g. F3A3-A3C#4-C#4F4-F4A4):26%
Whole Tone Major Thirds (e.g. F3A3-G3B3-A3C#4…):>12%
Chromatic Major Thirds (e.g. F3A3-F#3A#3-G3B3…):6%
Perfect Fourths (e.g. F3A#3-F#3B3-G3C4…): 6%

You need a Beat Speed Difference Sensitivity of half of these listed beat speed differences in order to be able to tune the required progressive beat speeds for each of these intervals.

For example, in order to produce an accurate equal temperament of progressive M3 and P4, you need a Beat Speed Difference Sensitivity of 3%.

Take this simple test to determine your Beat Speed Difference Sensitivity.

CLICK HERE for test

You can improve your Beat Speed Difference Sensitivity by listening to ear training recordings specifically designed to improve your beat speed difference sensitivity.

Beat Speed Difference Sensitivity Test

Beat Speed Difference Sensitivity Test

BEAT SPEED DIFFERENCE SENSITIVITY TEST

I have confirmed this test works in Firefox and Chrome.
It didn't work for me in Safari.
If anything goes wrong, just reload the page.


After you , click .

           
Testing Beat Speed Difference Sensitivity (BSDS) of:
Current level:
Consecutive correct answers at this BSDS:
Your Choice:

Vist howtotunepianos.com for more free piano tuning lessons, videos, and resources.

Disclaimers: This test produces clearly audible beat speeds. Actual piano beat speeds are harder to hear.
In order to improve your tunings, you need to improve your Beat Speed Detection
as well as your Beat Speed Difference Sensitivity.

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