KORG PA4X 76 - Manual (Page 775)

Master Transpose and Tuning |771
46 Master transpose and
tuning
Master tuning
You can fine tune the instrument (in cents of a semitone), to adapt it to an
acoustic instrument that is not possible to tune (for example an acoustic
piano without a professional tuner or the right tools, or a period instrument).
1 Go to the Global > Tuning > Master page.
2 Use the Master Tuning parameter to fine tune the instrument.
tuning Meaning
-100 cents Lowest pitch (half a semitone down)
0 cents Standard pitch (A4 = 440Hz)
+100 cents Highest pitch (half a semitone up)