Kurzweil X-Pro Series Getting Started Manual page 54

Song Mode
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5-14
Set the Events parameter to Controllers (see below.)
Set the Controller parameter to Volume. You can do this quickly by selecting the Controller field,
entering 7 on the alphanumeric pad, and pressing Enter. Make sure the LoVal parameter is set to 0
and the Hi parameter is set to 127 (see below.)
Use the From and To parameters to set the range of time from which you want to remove your
volume automation. You can play the song and watch the Locate field to determine these times. For
this example, let's say that we want to erase volume automation from bar 3 (see below.)