Starttrack

starttrack <track#>

starttrack is used to change the current background music that is playing.

<track#> is literally the track number of the current episode (which can be detected with the gamevar VOLUME) as defined by the music command. Change volume_number take another episode music. Remember that you must take back the last volume_number value:

 getuserdef[THISACTOR].volume_number TEMP
 setuserdef[THISACTOR].volume_number 1
 starttrack 0
 setuserdef[THISACTOR].volume_number TEMP

This will start track from episode 2 level 1 at any episode.