Korg Pa4X User Manual page 862

848| Global settings and preferences
SongBook Entries, Keyboard Sets, and the sub-scale
If you want that choosing a SongBook Entry also changes the sub-scale, the
SubScale/Quarter Tone
However, if you don't want that choosing a Keyboard Set (by pressing one of
the KEYBOARD SET
lock the SubScale/Quarter Tone Keyboard Set
Locking the Control parameters
1 Go to the Global > General Controls > Lock > Control
2 Select/deselect the desired locks.
has to be unlocked.
buttons under the display) also changes the sub-scale,
1-4.
page.