First thing you'll need to do is download and run Audacity. It's free.
Open the song you want to turn into a BGM in Audacity.
It is best if the song has a section that plays multiple times or it may be tough to find a spot to make it loop.
In the bottom of the Audacity screen make sure the...
Being an effective Force is not hard, there is a flow chart that should be followed to play a Force efficiently.
Healing/Reviving > Buffing > Debuffing > Crowd Control > Damage
Make sure everyone has high hp and use a moon / reverser on the dead to get them back on their...