"Refresh" came around one night when Alf was sound-messing around with a new microphone. Happy with what he was hearing, Combo phoned down a couple of friends to the studio for a boys-choir-test (you can hear them very well in the middle of the song). With all these "a capellas" safely stored on the hard drive they went home to catch some sleep.
The following nights they continued to build the song around these aural elements. Adding an old school b-line, electronic keys and clattering beats made the track sound somewhat techy, but still, thanks to the organic voices, very bouncy.
"Bang bang bang" is simply what it sounds like.