TS-10 Musician’s Manual Section 8 — Understanding Programs
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The KEY-RANGE defines the area of the keyboard that the TS-10 will use as a reference by which
to make its calculations.
To set the key-range:
• The START key (the first of the two key numbers shown) should be underlined. If not, press
the soft button beneath it to select it. Now, play C4 (middle C) on the keyboard. The
underline jumps to the END key.
• The END key should now be underlined. Play C5 on the keyboard. The parameter should
read: KEY-RANGE START/END C4 – C5. You have defined the key range whose pitch
intervals you want to duplicate over the entire keyboard.
Note that you can also set the start and end keys using the data entry controls, and press the soft
button beneath them to toggle back and forth.
We began editing our pitch-table with note C4 and ended our editing with C5. This is the key-
range for this particular pitch-table. Extrapolate will take the intervals between the notes in our
one-octave custom pitch-table and apply them to the rest of the keyboard, resulting in a
Pythagorean tuning covering the entire keyboard.
• Press EXTRAPOLATE. The display briefly reads PITCH-TABLE *CALCULATOR*, then
returns with the Pythagorean temperament across the entire keyboard.
At this point you might want save this pitch-table by using the Copy function to write the
program into a User RAM location as described earlier in this Section. Or, you can use the Copy
function to copy the PITCHTABLE into another program, or even into the System, for use by all
your programs.
Creating and Interpolating a Custom Pitch-Table
INTERPOLATE takes the interval between two notes on the keyboard and divides all the keys in
between into equally-spaced fractions of that interval.
As an example, lets make the entire 5-octave keyboard of the TS-10 span just one octave in pitch
from the lowest key to the highest.
• Using the procedure described earlier, create a custom pitch-table, and select PITCH-
TABLE=CUSTOM on the Pitch Mods page.
• On the Select Voice page, press the soft button for EDIT PITCH-TABLE.
• Set KEY C2 = C3 AND 00 CENTS. Next, set KEY C7 = C4 AND 00 CENTS.
We’ve just established an interval of an octave between C2 and C7.
• Press *CALCULATOR*
• Set the key range to KEY-RANGE START/END C2
-C7
.
• Press INTERPOLATE.
The TS-10 has just interpolated the octave (C3 to C4) and divided it equally across the 61 note
keyboard, so we now have a 60 step octave.
Warning:
You must save the program containing your custom pitch-table, copy the custom pitch-table into
another program, or into the system, or you will lose it as soon as you edit another sound.
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