*sigh* Ok, but first, you have to promise never to call yourself a 'newbie'. you are 'a beggner' not a newbie,noob,or newb. just a pet peve of mine.
1) make 2 rooms, with a door connecting them.
2) put the player start zrrow in room 1.
3) put a trigger zone is room 2,infront of the door
4) go to the entibank in fpsc and pull out the blue generator thing.
5) place the generator outside of the 2 rooms.
6) under the generator settings, set the 'spawn at start' to no, and at the very bottam, 'sound0' to whatever you want your music to be.
7) in the trigger zone's settings, change the 'ifused' feild to the name of the generator.
8) Under the trigger zones main script, select plrinzoneactivateused.fpi
9) test the game and see what happens.
This should work, I used the method for my level contest entry. you will notice that i picked the generator as the entity to use because of its main script, witch is repeatsound.fpi it doesnt have to be that entity, aslong the main fpi is repeatsound.fpi