Casio Casiotone LK-S450 - Sustaining Notes after Keyboard Keys Are Released

Controlling the Sound of a Performance
EN-40
While sustain is enabled, notes are sustained longer when keyboard keys are released.
1. Press TONE.
This displays the tone screen.
2. Press SUS.
This displays “SUS”.
3. Press and release keyboard keys.
The notes are sustained for a relatively long time.
4. To disable sustain, press SUS again.
Sustaining Notes After Keyboard Keys Are Released