When editing an audio track’s playlist in Pro Tools, you are not actually cutting and moving pieces of sound as you would if you were cutting and splicing analog tape. Instead, Pro Tools creates a map of the audio file on your hard disk, which describes the order in which to play various portions of the audio.When trimming audio clips with any of the Trim tools, or when editing the placement or order of clips within a track, you can use multiple playlists to easily return to a track’s previous state. For more information, see Playlists.