About This File
This stage setting is a rip-off from the one that Mike Martin created. It occured to me the other day as I was snooping the MIDI data from the PX-5S. At first, I thought it was annoying that Casio decided to use a "Note Off" message instead of a "Note On: Velocity Zero" message to end notes. For processing purposes, it added extra code to handle the different messages. But then I noticed that the Note Off messages really did carry the information about how quickly the key is released.
So, in this setting, hex layer 1 does normal note-on/note-off behavior for "nominal" playing rates. But if the keys are released very slowly, hex layer 2 kicks in and initiates the "fall" effect. There are some other snazzy things that one could do, but I don't have time to follow that tangent at the moment. I had really no reason to do this now except out of curiosity. I thought someone might find it useful, though.
The MP3 is a quick sample to see what it sounds like.