Semitone below
Fundamental, or first partial, i.e., the note itself
Octave above less one semitone
Octave above, or second partial
Double-octave less one semitone
Double-octave, or fourth partial
Seventeenth, or octave tenth, or fifth partial
Nineteenth, or double-octave fifth, or sixth partial
Double-octave diminished seventh, or seventh partial
Triple-octave, or eighth partial
Triple-octave second, or ninth partial
Triple-octave major third, or tenth partial
Triple-octave fifth, or twelfth partial
Triple-octave diminished seventh, or fourteenth partial
This list includes all partials from one to ten, plus the twelfth and fourteenth; one semitone low for the first, second and
fourth partials; and one subharmonic, the fourth below. This set is complete with all the notes necessary for tuning pianos
at pitch or below pitch, as well as pipe organs with mixture stops. Early musical instruments can be stored one semitone
low (A=415 Hz by two methods:
1. Exactly with an offset of -101.3 cents.
2. Approximately with notes stored one semitone low (on the first, second, or fourth partials.)
In general, tuning is far more accurate when done on the higher partials, specifically the partials used by aural tuners.
These vary from bass to treble with the highest partials preferable in low bass, and the fundamental preferable in the high
treble.
The tuning of a particular piano can be stored either from a written record of a tuning, or from the piano itself during the
tuning or immediately after completing a tuning. The SAT will be ready to repeat the correct settings from memory for
you, whenever you are ready to tune that piano again. Just go to the correct page (hold down the SHIFT button and
press PAGE to select the correct piano) and start to tune. Going from one note to the next is as easy as pressing the
NOTE up button once, or use the foot switch.
RANGE OF MEMORY MODE
The range of notes covered in the MEM mode is different from that of both other modes. It includes just the 88 notes on a
standard piano, known to the SAT as A0 through C8. Notice that although the three notes in octave zero can be stored in
memory, they must be tuned to a partial other than the fundamental since the lowest note in TUNE mode is C1.
NOTE: It is better practice to refrain from tuning bass notes on the fundamental anyway.
TUNING FROM MEMORY
Assume there is a complete tuning of a piano stored on a page of memory. To use this tuning, turn on the SAT, press the
TUNE button, hold SHIFT down and use the PAGE buttons to step to the page number assigned to this piano. (It is not
necessary to press MEM because selecting a page automatically puts the SAT into the MEMORY mode). Releasing the
SHIFT button sets the SAT at A0. To start tuning with the first note, go up one note and then back down to have the SAT
look up the correct settings. To start elsewhere, step up to the desired starting note and begin tuning.
When ready to tune the next note, just press NOTE up or down, and tune away. The notes can be tuned in any
sequence, up, down, or by octaves, and the previously stored values for the selected notes will appear. The fastest way
to tune is with the foot switch or thumb switch since it leaves both hands free for tuning and you don't have to touch the
SAT.
The display in MEM mode shows the note being tuned, and the cents deviation of the partial. To check the page number,
press the MEM button. To check the partial you are tuning, press the TUNE button and read the note corresponding to
the pitch of the partial in the left display. ( Note: Always remember to go back to the MEM mode by pressing the MEM
button after this check or the SAT will be left in the TUNE mode.)
PITCH RAISING
The Sanderson Accu-Tuner is able to automatically calculate the overpull or anticipated drop of a given note during the
course of a pitch raising. The SAT measures the unknown pitch first, then compares it with the corresponding note of the
tuning on the page in memory, and then calculates a pitch-raise correction.
