(1) A list giving the chronological order in which a number of pieces of music or sound effects are to be played. The list will often describe the start time, duration, and finish time of each item.
(2) In editing, particularly digital audio editing, a list similar to (1) above which gives the order in which sections from various recording takes will be used. It will usually include timing information which may be locked to timecodetime code, as well as information about type and duration of crossfades, etc. Both also known as an EDL.