6Pitch
GranTouch—Owner’s Manual
Pitch
Initially the GranTouch is tuned to the standard Concert Pitch (A=440 hertz). You can, how-
ever, adjust the pitch to suit your particular application. Different pitches are sometimes
used in vocal music and orchestral performances. The pitch can be adjusted in one hertz
steps from 438 to 445 hertz (one hertz is about four cents).
Adjusting the Pitch
You’ll need a small, flat-blade screwdriver to adjust the PITCH switch, which is located on
the right side of the Control Box, as shown below.
Fine Tuning
As well as being able to tune the GranTouch in one hertz steps with the PITCH switch, you
can also fine tune it using the keyboard. The GranTouch can be tuned up or down 50 cents,
in 1.2 cent steps (100 cents equals one semitone). This allows you to achieve a perfect tuning
match between the GranTouch and another instrument, a vocalist, or a slightly off-speed
cassette player.
Tuning Up
To finely tune up the GranTouch, hold down the A and B keys at the far left of the keyboard
and press any one of the keys from middle C to B. It doesn’t matter which key you press,
just so long as it’s in the middle C to B range, which is shown highlighted in the illustration
below. The pitch is raised 1.2 cents for each key press.
Note: The PITCH switch setting is remembered when the GranTouch is powered down.
Note: Fine tuning settings are not remembered when the GranTouch is powered down.
438
439
440
441
442 443444
445
PITCH
Middle C
AB