Tracks
Tracks are the building blocks of your project. They allow you to import, add, record, and edit parts and events. Tracks are listed from top to bottom in the track list and extend horizontally across the Project window. Each track is assigned to a particular channel strip in the MixConsole.
If you select a track in the Project window, the controls, settings, and parameters displayed in the Inspector and the track list allow you to control the track.