Welcome to 'myMusette' |
Accordion Musette Tuning Guide |
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Purpose:The purpose of this web site is to provide actual examples of how various accordion manufacturers tuned their musette accordions. However, it is important to point out that the information contained on this site was gained directly by testing numerous accordions and NOT by contacting the various accordion manufacturers directly. |
1) Youtube Videos:If you are interested in building your own 'Tuning Table' to assist you with all tuning activities, you can view several informative videos on Youtube submitted by the founder
of this web site (Dennis Amott) as follows:
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2) Accordion Non-Musette Treble Reeds:On the treble side of an accordion i.e. the keyboard side, there could potentially be any combination of:
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3) What is a Musette accordion?A musette tuned accordion must have at least TWO sets of middle reeds (termed M, M1).
If the M and M1 reeds are tuned to exactly the same pitch they will all sound like ONE reed is being played but with a slightly thicker sound.
The trick with a musette style accordion is to tune the M1 reeds to a slightly different pitch than the M reeds. When played together these two slightly ‘out-of-tune’ reeds will fight each other producing a rich waa, waa type of sound. The more out of tune with each other they are the stronger and faster the waa waa sound is made.
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4) Typical musette accordion sound:
Some examples of various manufactured musette accordions are shown opposite -->
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5) What is a ‘beat’?As mentioned above when the middle M reed is played together with the slightly 'out-of-tune' M1 reed, a second new sound is added in the form of a new vibration, or waa waa, to the total sound. For example, if the M reed is tuned to A=400 c/s and the M1 reed is tuned to A4 = 442 c/s the a new sound is created being a slow beat of about 2.5 c/s is added to the original 440 c/s note. This extra 'beat' is what is called the 'musette' sound. The more the M1 reed is miss-tuned slightly above (or below) the M reed, the faster the resulting 'beat' or musette sound is produced.6) What is a ‘cent’?A ‘cent’ can be thought of as the percentage difference between a particular note and the next note a semi-tone up.
There are 100 cents in a semi-tone. To obtain a musette tone the musette reeds will will typically have to be tuned anwhere between 2.5 cents to 30 cents either higher or lower than the none musette reeds.
Your ‘Tuning Device’ will normally display the number of ‘cents’ out-of-tune a particular reed is vibrating at.
However, in the case of accordion manufacturing, for some reason, this is not always the case. It does seem obvious that many accordions as they come out of the factory, are actually tuned to a base frequency somewhat higher than normal concert pitch. One reason suggested for this is, that the accordion will 'stand out' better when played with other instruments. It should also be noted that some of older accordions (1910 - 1940) base frequency may actually be tuned lower than concert pitch say A4 = 438 c/s. a) Non-musette accordions:In the case of non-musette accordions, the lower, middle and high reeds are all tuned exactly one octave apart. The base frequency is then automatically set to the frequency of the middle M A4 reed. In most cases, non-musette accordions this middle reed will be tuned to concert pitch of 440 c/s. |
b) Musette accordions:
The 'base' frequency of a musette tuned accordion will depend on the average result of pairing two (or more) middle reeds.
So for example if the M A4 reed is tuned to 440 c/s/ and the M1 A4 reed is tuned to 444 c/s then the combined results is that the accordion base frequency will be about 442 c/s.
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8) Two different approaches to tuning reeds:There are basically two different approaches that can be used to tune an accordion with the required musette sound as follows.a) Use of 'beats' to create the required musette sound:
It seems apparent that some people will prefer to think of a musette tone as being the number of 'beats' that can be heard when that note is played.
In this case they would tune the entire middle reeds by somehow listening to, or perhaps measuring the the number of beats being produced between any two notes.
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M1 reed tuned up 2.5 cents A = 440.7 c/s |
Beats = 0.7 beats per second             click here --> |
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M1 reed tuned up   5 cents A = 441.3 c/s |
Beats = 1.3 beats per second             click here --> |
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M1 reed tuned up 10 cents A = 442.6 c/s |
Beats = 2.6 beats per second             click here --> |
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M1 reed tuned up 15 cents A = 443.9 c/s |
Beats = 3.9 beats per second             click here --> |
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M1 reed tuned up 20 cents A = 445.2 c/s |
Beats = 5.2 beats per second             click here --> |
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M1 reed tuned up 25 cents A = 446.6 c/s |
Beats = 6.6 beats per second             click here --> |
b) Use of 'cents' to create the required musette sound: Perhaps the easiest way to tune a musette accordion is to use the method using 'cents'. This method would undoubtable require the use of electronic tuning equipment or a computer app.
Use of such equipment means that the user does not have to make all required measurement 'by ear' which would undoubtedly require some significant skill set.
When using a computer app to tune an accordion all that is required is to simply tune each reed to the required 'cent' level as displayed on the computer screen.
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To view the full graph click here. |
9) Tuning Checkup Table (TCT):In order to keep track of your tuning activity, we recommend you use the ‘Tuning Checkup Table’ (TCT) as shown here.
This table will help you keep track of which reeds have been tuned so far and the number of cents each reed was tuned too.
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10) Sample Musette Tunings:
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The following examples shows how various accordions were tuned. Click on the right column to view the Tuning Checkup Table. These measurements were taken from several old instruments and it cannot be guranteed that this was the way the instrument was first tuned when it left the factory. |
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Many thanks go to Vancouver resident Mr. Haike Kingma for playing many of the sample musette tunes above. |
11) Tuning Technique:The following explanation assumes that you are using a tuning device (TD) such as
the FMJ Chromatia Tuner as shown opposite. We highly recommend using a computer app as it much more simple, accurate and efficient to use. |
Step 1: Establish the accordion treble reeds ‘base frequency’
a) First, make sure your TD base frequency is set to A4 = 440 c/s.
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12) Other sources of information:
- Talking Reeds web site: here.
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