It should work. I did the same thing with the same song code. Make sure you clip is a script brush, and that its targetname is the same in the GetEnt function.
You could also have it initialize the teleporter script after completing the shootable EE script.

Heres a very basic kino like teleporter script.
Its a one player teleporter, and might have used variables that are not present here.
To teleport use    player setorigin(backpos); //backpos is the cords
Look at the Giant teleport script for more info

[code]function __main__(...