bzw,

You cannot actually LOCK the reverb amount since this value is determined by the midifile once in Song Play mode (different songs have different effect values).

However, you can lock the reverb type by:-

* Pressing EFFECTS (F2)
* Select the EFFECT type you want to lock.
* Lock the effect with EFFECT LOCK (6).

Again this maintains the effect type no matter what you play - the value is determined by the song though.

Thanks,

AJ