MIDI Thru
When MIDI Thru enabled, Bandora will send all incoming MIDI events to the MIDI output device of the current track. This allows you to play different patches by changing tracks in the Tracks View. This way, you do not have to set up your keyboard to play on a specific MIDI channel. Bandora will take MIDI Input on any channel and convert it to the channel of the current track.
If the current track channel is set to "None", MIDI events received from MIDI Input will be sent out on the channel in which they were received. This is the preferred method if you are using an instrument that transmits events on more than one channel - a MIDI guitar controller for instance.
You may enable and disable MIDI thru in Settings - Preferences.