[fluid-dev] Clearing an individual channel

[ametts2]

Please pardon the newbie question, but how do I set a channel to a "null" patch 
-- or otherwise prevent it from sounding?

I understand how to select instruments and presets from Soundfonts, but 
sometimes I want to bring in a different software synth for say, MIDI channel 
#7 -- and tell FluidSynth to stop making noise on that channel.  Can I do this 
with the PROG or SELECT syntax?


Hey, while I'm asking newbie questions...

Where to reverb presets come from?  I see a facility to choose them, but 
nothing to list or create them.  And am I correct in assuming that the reverb 
and chorus settings apply to *all* channels?

Thanks in advance...

Allan Metts