U-220 Patch / Patch Bank
------------------------

* Patch - load SysX which configures
  a sound
* Patch Bank - load a bank of 
  sound patches

* Match U-20 Unit # to Comm Ch (found
  under EDIT/SETUP/MIDI/COMMON)

* Ensure that Rx System Exclusive
  reception is enabled (found under
  EDIT/SETUP/MIDI)
