Yamaha TG500 Owner's Manual page 122

VOICE EDIT MODE / 3: Full Edit. 3-1: Oscillator
NtShft (Note shift)/Note (Fixed note)
RndPt (Random pitch)
Rvs (Reverse)
110 3-1-02: PARAMETER
Range: C-2 ... G8, -64 ... +63
When the "fix" mode is selected this parameter sets the frequency (note) at
which the selected wave will be played. The C-2 to G8 range of this parameter
covers a full 10-1/2 octaves. "C3" corresponds to "middle C" on a keyboard.
When the "norm" mode is selected, this parameter is used to shift the
overall pitch of the entire keyboard up or down in semitone increments (i.e. a
"note shift" function). In this case the range of the parameters is from -64
through 0 to +63. A setting of "-12," for example, shifts the pitch down by one
octave; a setting of "+4" shifts the pitch up by a major third.
Range: 0 ... 7
Sets the amount of random pitch variation produced each time a note is
played.
When this parameter is set to a value other than "0," the pitch changes
randomly each time a note is played. The random pitch change is applied
independently to each note in a chord. A setting of "7" produces the greatest
amount of random pitch change.
This function is ideal for simulating the sound of instruments like the
clavichord, string sections or other ensembles in which the pitch of each note is
rarely in perfect tune with the others.
Range: off, on
When this parameter is turned "on," the selected wave is played in reverse.
When Rvs is "on," the pitch EG "Loop" parameter described on page 132 is
automatically turned "off."