This tool allows you to route the output of a particular track in a MIDI sequence to an output port. Normally when a MIDI file is selected as a sound file, a single port is defined which the playback of the sequence is sent to (sound module, etc..). With the Track Mapper, you can send a particular track to a different output. A typical application is to send a track containing a song's harmony vocal line to a harmonize like the TC Helicon Voiceworks.