Wiardgroup

Discovered a neat trick today with the omni filter.  Run a cv into 
it,  set it to low pass.  Run a voltage into the FC2 and adjust to 
invert it so you can lower the frequency of the filter way below 
minimum.  This will give you noticeable slew times.  Otherwise the 
frequency of the filter is too high to have a noticeable slew. Run the 
output to the cv in on something like your oscillator.   The filter 
will slew between changes on the cv in.   

This allows you to have a voltage controlled Slew in the wiard 300 
system.   You can also do interesting cv filtering on lfos etc with 
this patch.