Midi ports are dedicated for music interface. Midi includes a protocol to exchange music information between machines.
Midi ports are available on all computers, numeric piano, ...
To connect a Midi port, select the device not yet connected in the list-box (Hardware tab, section Midi-In or Midi-out).
With the value "auto" for Midi-In, the next Midi-In device not yet connected is automatically connected (except IAC under Mac).
Midi is physically available under 3 forms :