The split and layer soft buttons, The split function, The split and layer soft buttons -13 – Kurzweil Forte User Manual
Page 87: The split function -13

Program Mode
The Split and Layer Soft Buttons
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The Split and Layer Soft Buttons
The soft buttons SPLIT and LAYER perform slightly different functions, but offer identical
parameters.
The Split Function allows you to split Programs such that keys in one region of the keyboard
produce different sounds than another region. The Layer Function allows you to layer
Programs and Multis such that more than one sound can be produced by striking one key.
This is convenient, because you do not need to use Multi Edit Mode to configure Zone key
ranges, Programs and volumes. Simply hit the soft button while in Program Mode to select
the Function. You can then configure additional Zones, each of which may have its own
Program and controller assignments. The result may be saved as a new Multi (see
for more information on Multis).
The Split Function
When you create a Split in Program Mode, you are in fact creating a Multi with two active
Zones. Multis are configurations of multiple Zones, each of which may have its own Program
and controller assignments.