Kurzweil PC3LE Musician's Manual page 298

Tutorial: Song Mode
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Part 6 c: Erasing Volume Automation
If you've saved a song with volume automation and you wish to change or remove it
afterwords, follow the steps below to erase a selection of volume automation:
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2.
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Press the Record button, then press Play/Pause.
Select the Vol parameter and adjust it with the alpha wheel while the sequencer is recording. Any
changes to the Vol parameter will be recorded as data in the current track.
When you are finished, press the Stop button. You will be able to review and save your changes just
as in Step 4 of Part 3 (see above.)
In Song mode, press the Edit button with anything except the Prog parameter selected. This brings
you to the current song's EditSong:COMMON page.
On the EditSong:COMMON page, press the TRACK soft button (see below.) This brings you to
the EditSong:TRACK page.