ME-50: Patch Edit.
Use the following procedure to Edit a patch.
1. Select a patch.
2. Press EDIT/EXIT- The MEMORY LED will flash.
3. Turn the various knobs to adjust the sound.
4. When you're finished (and if you're happy with your new patch), you can store it into memory by pressing the WRITE button twice. If you do not want to store the patch, press EDIT/EXIT.