+ This is the most complex part of the job, but its still not very hard.
+ You need to connect the control surface to an application that will show
+ you the information that the device sends each time you modify a knob,
+ slider, button etc. There are a variety of such applications (notably
+ <code>gmidimon</code> and <code>kmidimon</code>, but you can actually use
+ Ardour for this if you want. Start Ardour in a terminal window, connect
+ MIDI ports up, and in the Preferences window, enable "Trace Input" on the
+ relevant MIDI port. A full trace of the MIDI data received will show up in
+ the terminal window. (Note: in Ardour3, you get a dedicated, custom dialog
+ for this kind of tracing.)