Volume of sound

How can you set the volume of the sound? I have a background tune, but by that you can’t hear anymore the sound effects for the buttons.

What to do?

Thanks in advance
Nico

mySound.setVolume(50);

[edit]Assuming that you’ve done what jubba posted below[/edit]

Here is a sound tutorial. Once you read this you will be a pro with sound.

http://www.flashkit.com/tutorials/Audio/Flash_MX-Kenny_Be-824/