Enable; Enable Sense (S) - Kurzweil K2661 Musician's Manual

Enable

This assigns a control source to activate or deactivate the layer. When the value of the assigned
control source is between the minimum and maximum thresholds set by the Sense (S)
parameter, the layer is active. When the value of the assigned control source is below the
minimum or above the maximum, the layer is inactive. By default, many layers have the Enable
parameter set to ON, so the minimum and maximum thresholds don't matter. They're relevant
only when Enable is set to a specific control source (like MWheel).
Some local control sources (KeyNum and AttVel, for example) are not valid for the Enable
parameter. In these cases, you should use the global equivalent (GKeyNum and GAttVel in this
example).

Enable Sense (S)

This parameter determines how and when a layer is enabled by the control source assigned for
the Enable parameter. Enable Sense has three values: orientation, minimum, and maximum.
Suppose for a moment that you're editing a program, and in the current layer you've set the
value of Enable to MWheel, which causes the Mod Wheel to control whether the layer is active.
The default values for Enable Sense are as follows: orientation is Norm; minimum is 64, and
maximum is 127. This means that when the Mod Wheel is less than halfway up, the layer is
disabled. The layer plays only when the Mod Wheel is more than halfway up.
Change the orientation to Rvrs, and the layer plays only when the Mod Wheel is less than
halfway up. Change the orientation back to Norm, and change the minimum to 127. Now the
layer plays only when the Mod Wheel is all the way up.
You could use this parameter to set up a two-layer program that would let you use a MIDI
control to switch between layers, say a guitar sound and a distorted guitar. Both layers would
have their Enable parameters set to the same control source, say MWheel. One layer would
have its Enable Sense orientation set to Norm, and the other would have it set to Rvrs. Both
layers would have their Enable Sense minimums set to 64, and their maximums to 127. The first
layer would play when your Mod Wheel was above its midpoint, and the second layer would
play when the Mod Wheel was below its midpoint. (You could achieve the same effect by
having the Enable Sense orientation in both layers set to Norm, and the min and max values set
as follows: min 0 and max 63 for one layer; min 64 and max 127 for the other.)
Using this parameter in conjunction with the Enable parameter, you can easily create velocity-
switching for as many layers as you have in your program. This is useful for drum programs,
since you can define a different velocity-trigger level for each of the 32 layers available in drum
programs.
First, set the Enable parameter for the Layer 1 to a value of GAttVel (global attack velocity). This
causes the layer to play based on the attack velocity of your keystrikes. Then set the Enable
Sense (S) parameter to a value of Norm, and adjust its minimum and maximum values (the two
numerals to the right of Norm) to a narrow range. Don't use negative values, since they don't
apply when you're using GAttVel as the layer enabler.
Repeat this for each layer in the program. Bear in mind that if you want to set up 32 different
velocity levels for a program, with equal intervals between each layer, then you have a range of
4 for each level (Layer 1 is 0–3, Layer 2 is 4–7, and so on). It won't be easy to play precisely
enough to trigger the layer you want. On the other hand, if you're using Song mode or an
external sequencer, you can edit attack velocity levels, and get exactly the results you want.
Program Mode and the Program Editor
The LAYER Page
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