title: Patch Storage for a CSound Instrument
body: <p>My CSound instrument updates a handful of parameters via MIDI controller messages. It needs to be able to store and retrieve parameter sets (patches) and update the parameters on MIDI patch change messages.</p>
  
  <p>Is there a CSound way to do this other than building it from Python opcodes?</p>
  
  <p>I think I could build a patch manager in PureData, but would that tax a Raspberry PI beyond usefulness? Would a PureData program hit the CPU at all when not busy changing patches?</p>