A track is a virtual group of notes in a Score or Translator. Expresseur can manage 16 tracks. In the Score, each Event can be attached to a track. In the Translator, each Chord can be attached to a track.
For basic use, the track number is equal to the Midi channel.
A track can be forced to a MIDI channel, in Score or Translator tab, in section "name of tracks".
Tracks are used in Expresseur tunings (Mixer , visualization in the Score, ...)
Warning : the Midi channel is used for the MIDI tunings, like sound ( MIDI program ), volume and balance ( Controler 7 and 10), ...