Control volume with slider

[DBurks2818]

Here's something my team made for our game:

song = viz.add('[insert song].mp3')
song.play()
song.volume(1.0)

viz.clearcolor(0.5,0.5,1)

def myslider(obj, pos):
song.volume(0.8*pos)

viz.callback(viz.SLIDER_EVENT,myslider)

I couldn't quite get it at first either, but it turned out to be pretty simple.