This use 2 pitch blocks, one set to a fixed pitch, the other is controlled by the expression pedal. The pedal also fades in the volume block.
Heel down shuts off the input volume, and toe down is full volume. Both pitches are set to auto-engage, so they shut off after you've faded in and you can play normally without the harmonies getting in the way.
Heel down shuts off the input volume, and toe down is full volume. Both pitches are set to auto-engage, so they shut off after you've faded in and you can play normally without the harmonies getting in the way.