Help required with sounds and hair

I wish to create a room in which an ambient sound is played.

First of all, I assumed that you could just drag a sound from your inventory to the prim concerned, but of course, that was a little optimistic of me, and it didn't work.

So then I reasoned that you would need a script to play the sound, and tried to modify one of the sound scripts that came with a bought object.

That, too, was a resounding failure.

Now I've reached the hair-pulling stage, and as I don't have a great deal of hair to pull, this is rather worrying. Before I go completely bald, I wonder whether someone could show me an outline script for playing a sound - as you might have gathered, I am useless when it comes to scripting.

Thanks!

Give me a shout in world, I'll set it up for you.