7
TRANSPOSITION
The Transposition function makes it possible to shift
the pitch of the entire keyboard up or down in semitone
intervals up to a maximum of six semitones. “Transpos-
ing” the pitch of the PDP-300 keyboard makes it easier
to play in difficult key signatures, and you can simply
match the pitch of the keyboard to the range of a singer
or other instrumentalist.
The [MIDI/TRANSPOSE] button and keys F#5
through F#6 on the keyboard are used for transposition.
1. Press and hold the [MIDI/TRANSPOSE] button.
2. Press a key between F#5 and F#6 according to the de-
sired amount of transposition.*
3. Release the [MIDI/TRANSPOSE] button.
*Pressing the C6 key produces normal keyboard pitch. Pressing
the key to the left of C6 (B5) transposes the pitch of the
keyboard down a semitone, the next key to the left (Bb5)
transposes down a whole tone (two semitones), etc., down to
the F
#
5 key which transposes down 6 semitones. Upward
transposition is accomplished in the same way using the keys
to the right of C6, up to F
#
6 which transposes up 6 semitones.
Note: The normal keyboard pitch is automatically selected
when the power is turned ON.
DUAL MODE
The DUAL mode makes it possible to play two voices
simultaneously across the entire range of the keyboard.
To activate the DUAL mode simply press two voice se-
lectors at the same time — or press one voice selector
while holding another. The voice indicators of both se-
lected voice will light when the DUAL mode is active.
To return to the normal single-voice play mode, press
any single voice selector.
Please note that if both voice selectors are pressed si-
multaneously, both voices will be produced at the same
volume. It is possible to change the balance between the
two voices, however, by pressing and holding one voice
selector before pressing the other. The voice correspond-
ing to the voice selector pressed first will be reproduced
at a slightly louder volume than the second voice.
Polyphony in the DUAL mode is as follows:
Notes/voice Polyphony
16 + 16 8
8+ 16 5
PITCH CONTROL
Pitch control makes it possible to tune the PDP-300
over a ±50-cent range in approximately 1.2-cent inter-
vals. A hundred “cents” equals one semitone, so the tun-
ing range provided allows fine tuning of overall pitch
over a range of approximately a semitone. Pitch control
is useful for tuning the PDP-300 to match that of other
instruments or recorded music.

Tuning Up

1. To tune up (raise pitch), hold the A-1 and B-1 keys si-
multaneously.
2. Press any key between C3 and B3. Each time a key in
this range is pressed the pitch is increased by approxi-
mately 1.2 cents, up to a maximum of 50 cents above
standard pitch.
3. Release the A-1 and B-1 keys.

Tuning Down

1. To tune down (lower pitch), hold the A-1 and A#-1
keys simultaneously.
2. Press any key between C3 and B3. Each time a key in
this range is pressed the pitch is decreased by approxi-
mately 1.2 cents, up to a maximum of 50 cents below
standard pitch.
3. Release the A-1 and A#-1 keys.

To Restore Standard Pitch*

1. To restore standard pitch (A3 = 440 Hz), hold the A-1,
A#-1 and B-1 keys simultaneously.
2. Press any key between C3 and B3.
3. Release the A-1, A#-1 and B-1 keys.
*Standard pitch (A3 = 440 Hz) is automatically set whenever the
[POWER] switch is turned ON.
TOUCH SENSITIVITY
The PDP-300 can be set to one of three different
types of keyboard touch sensitivity — HARD, MEDIUM
or SOFT — to match different playing styles and prefer-
ences.
The HARD setting requires the keys to be played quite
hard to produce maximum loudness.
The MEDIUM setting produces a fairly “standard”
keyboard response. This setting is automatically selected
whenever the power is turned ON.
The SOFT setting allows maximum loudness to be
produced with relatively light key pressure.
To select a touch sensitivity setting hold the [MIDI/
TRANSPOSE] button and press the [REVERB] button a
few times until the REVERB indicator corresponding to
the desired setting lights:
PEDAL = HARD
ROOM = MEDIUM
HALL = SOFT
For Pitch Control (A-1 + B-1/A-1 + A#-1) For Pitch Control (C3 ~ B3) For Transposition (F#5 ~ F#6)