Yamaha Electone EL-87 Owner's Manual - page 137
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(2) Melody On Chord
To select knee lever control over Melody On Chord:
1
Press the A.B.C./M.O.C. button in the DISPLAY SELECT
section to select the A.B.C./M.O.C. page.
2
Then set the KNEE control to ON, and select one of the modes.
3
Press the knee lever continuously to the right to get the Melody
On Chord effect in the middle of the performance.
N O T E :
If the KNEE is set to ON, the Melody On
Chord cannot be applied without using the
knee lever.
(3) Lead Slide
To select knee lever control over Lead Slide:
1
Call up the Lead Condition display, by twice pressing a Lead
Voice button (or the Data Control button corresponding to a
Lead voice).
2
Select PAGE 2 by pressing Page buttons.
3
Then select KNEE and set the TIME parameter in the SLIDE
controls.
4
Press the knee lever continuously to the right to get the Lead
Slide effect in the middle of the performance.
N O T E :
If the KNEE is set to ON, the Lead Slide
cannot be applied without using the knee
lever.