Apple Logic Express 9 - Manual (Page 217)

Track used for Assigned to Mixer Track type
Used as lanes for folder regions. Folder regions
are simply containers for other regions and are
not assigned to a Mixer channel strip. Not assigned Folder
As you can see, each track type handles different sorts of data and has a special purpose.
This is due to the routing of each track to a specific channel strip type in the Mixer.
The parameters of a track are displayed in the Inspector’s Track Parameter box.
Track Parameter box
Important: The parameters belong to the channel strip (or object) the track is routed to,
not to the track per se, so if you alter the parameters in the Track Parameter box, all tracks
assigned to this channel strip are affected.
Most of the functions described in this chapter are identical for external MIDI, software
instrument, and audio tracks.
In addition to these track types, there are also tracks with very specific functions, such as
global tracks. Global tracks—found at the top of linear editing windows—are used to
view and edit global events, such as tempo, which affect all tracks in the arrangement.
For information about these tracks, see
Global Tracks .
217 Chapter 9 Working with Tracks