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NON-EQUAL TEMPERAMENTS
Another feature of the Sanderson Accu-Tuner is the ability to alter tunings and add different
temperaments without having to physically alter all 88 notes of a tuning. The Temperament
pages allow a technician to store the rules of a temperament for twelve notes and select any
tuning and alter the tuning with the selected temperament automatically. If the temperament
page is selected before calculating the FAC tuning, the tuning will be stored to memory with the
rules of the temperament added/subtracted to each of the notes as it is stored into memory. Now
it is possible to develop your own temperaments and try them out on any piano.
STORING A TEMPERAMENT
Select a TEMPERAMENT page for storage by using the PAGE buttons to go above page 198 of
regular pages of memory, above Sequence pages (SE 1,2,3,4), the next page of memory
displays 1-7t, and the following page (after “1-7t”) displays “8-14”. Octave 1 on PAGE 1-7t is the
first temperament storage location; the chart below lists where the stored temperaments
correspond to the temperament number:
PAGE
1-7t
in memory
PAGE
8-14
in memory
Octave 1
Temperament 1
Octave 1
Temperament 8
Octave 2
Temperament 2
Octave 2
Temperament 9
Octave 3
Temperament 3
Octave 3
Temperament 10
Octave 4
Temperament 4
Octave 4
Temperament 11
Octave 5
Temperament 5
Octave 5
Temperament 12
Octave 6
Temperament 6
Octave 6
Temperament 13
Octave 7
Temperament 7
Octave 7
Temperament 14
PAGE
15-21t
in memory
PAGE
22-28
in memory
Octave 1
Temperament 15
Octave 1
Temperament 22
Octave 2
Temperament 16
Octave 2
Temperament 23
Octave 3
Temperament 17
Octave 3
Temperament 24
Octave 4
Temperament 18
Octave 4
Temperament 25
Octave 5
Temperament 19
Octave 5
Temperament 26
Octave 6
Temperament 20
Octave 6
Temperament 27
Octave 7
Temperament 21
Octave 7
Temperament 28
Just to repeat and reinforce the table above:
Temperament #1 is located on page 1-7t, Octave 1 note C1 through B1.
Temperament #2 is located on page 1-7t, Octave 2 notes C2 through B2.
Temperament #3 is located on page 1-7t, Octave 3 notes C3 through B3.
Temperament # 13 is located on page 8-14, Octave 6 notes C6 through B6.
Temperament #14 is located on page 8-14, Octave 7 notes C7 through B7.
To try out a temperament, the following temperaments are stored in the Accu-Tuner on
temperament pages 8 through 14. The temperaments are listed below:
Temperament 8
Kirnberger III
Temperament 9
Meantone ¼ Comma
Temperament 10
Meantone 1/6 Comma
Temperament 11
Prinz Temperament
Temperament 12
Vallotti Temperament
Temperament 13
Werckmeister Temperament
Temperament 14
Young’s Temperament
Previously with the Accu-Tuner IV, you would use the PAGE button to go up above the regular
pages of memory until you reached the temperament page 1-7t, or 8-14t then select the correct
octave to enter the non-equal temperament offsets. With the Accu-Tuner IV there is a more direct
