The song has been divided into several escalating parts which can be triggered by pressing number keys 0-4. Certain parts of the song have intro segments which will only play once upon initially selecting them, but can be forced to play again if you simply press its segment's corresponding number key again. If you wish to stop the music but want to wait for the segment that is currently playing to finish first, press the number 5 key.
All credits for the Path of Pain song (actually called "Sealed Vessel") goes to Christopher Larkin.
