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How to Tune Pianos

The Hobby, Skill, and Career of Piano Tuning

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The questions are at the top of the page, the audio files needed to answer the questions are listed below.
Scroll below the questions to the audio files, listen to the audio files, and then scroll back up to answer the questions.

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Audio Files for Question #1

Which answer lists these unisons from slowest beating to fastest beating.

A4 #1

A4 #2

A4 #3

A4 #4

A4 #5


Audio Files for Question #2 - Match the A4 unison with its 1st and 2nd partial pair.

Listen to the A4 unison on the left. . Match it with its filtered partial pair on the right.
For example, the following unison is paired with its filtered 1st and 2nd partial.

A4

Partial 1 (A4)

Partial 2 (A5)


Which pair of partials belong to the unison below?

Question 2

Partials Pairs: 1st (A4) and 2nd (A5)

Pair #1:

Pair #2:

Pair #3:

Pair #4:

Pair #5:


Audio Files for Question #3 - Which partial set belongs to this unison? 

Play the A4 Test Unison below.
Beside it are nine sets of the partials 1, 2, 3, and 4. (A4, A5, E6, and A6)
Only one of those sets belongs to the test unison.

Here's an example of a unison with its upper partials filtered. Try to hear the filtered partial sound in the unfiltered A4 Unison.

A4 Unison

Partial 1 (A4)

Partial 2 (A5)

Partial 3 (E6)

Partial 4 (A6


A4 Unison

It might be a good idea to get a paper and pen and cross off sets that definitely are not part of the unison sound.

Partials 1, 2, 3, and 4. (A4, A5, E6, and A6)

Set #1:

Partial 1

Partial 2

Partial 3

Partial 4

Set #2:

Set #3:

Set #4:

Set #5:

Set #6:

Set #7:

Set #8:

Set #9:


Audio Files for Question #4 - Which 2:1, 4:2 pair belongs to this octave?

Listen to the octave below and the 2:1, 4:2 partial pairs.
Which 2:1, 4:2 partial pair belongs to this octave?

Octave

Partial 2:1

Partial 4:2

Set #1:

Set #2:

Set #3:

Set #4:

Set #5:


Audio Files for Question #5 - Match the beating 3:2 and 6:4 partials with this P5.

This P5, A3E4 has a coincident partial at E5(3:2). It also has a 2nd coincident partial at E6(6:4). Can you hear each beating coincident partial separately?
Identify the beating 3:2 and 6:4 partials that go with this A3E4 P5.

Perfect Fifth

3:2 Partial

6:4 Partial

Pair #1:

Pair #2:

Pair #3:

Pair #4:

Pair #5:


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