Yeah, the backing track and vibraphone/oohs are from my Yamaha PSR-E413 (a home keyboard, but does the trick most times). The lead sound is from the Bristol Polysix run through Guitarix for the distortion. The patch is fairly simple, six oscillators set to a pulse wave with a width of about 64-67% and each one slightly detuned, sent through a lowpass filter with a cutoff at about 10 o' clock, resonance at about 9 o' clock and filter tracking set to fully open. No velocity tracking (in keeping with the spirit of the original Polysix).

The majority of the sound comes from the patch itself and how I set Bristol to run on startup. The distortion is fairly easy to do: Cranking it up is better. If you want, I can send you the patches off-list, not too sure if guitarix is at all easy to control from the console though.