First, select an mp3 from your computer, OR...
... If you have no mp3 files available, because you're no Boomer you can also select from these fine songs below:
select a 'set' of visuals for left side of your mixer
select a visual set for the right side of the mixer
Optionally, select a "mix preset", for automatic mixing (still under development)
Now put your speakers or headphones on and press GO!