Kurzweil PC4 SE Musician's Manual page 95

Constant
With Note Map set to Constant, all of the keys on the keyboard will play the same note
(C4). Use the Transpose parameter to change the note that is played. This is useful for
layering a percussion sound from a particular key to play with every note of another zone.
For example, playing a ride cymbal with every note in a bass line.
Alternating (1 of 2 through 4 of 4)
The Note Map parameter includes various alternating note maps (1 of 2 through 4 of 4). If
you are using two or more MIDI devices (including the PC4 SE), you can expand polyphony
by assigning each zone to a different alternating note map.
For example, if you have two PC4 SEs, you can assign two zones to each play the same
program on a different PC4 SE, thereby doubling polyphony. Follow these steps:
1. Set Zone 1 to Note Map 1 of 2; now the zone plays on every second key, starting on C,
but won't play on any other keys.
2. Set Zone 2 to Note Map to 2 of 2, and this zone will play on every second key, starting
on C#, thus covering the remaining keys. Three and four-zone alternating note maps
work the same way, but cause each zone to play only on every third and every fourth key,
respectively.
Multi Edit Mode
Velocity Page
5-7