This is one of my favourite songs of all time, period. It was partly called People of the Earth originally, and then obviously got changed into Prophet's Song. This was done over so many segments and there's various different things. This was, I would say, totally the brainchild of Brian. The song starts with wind noise which, in actual fact, is not wind at all - it's actually an air conditioner with a phaser on the microphone. You can hear with [the canon] that [Mercury] starts off singing in the centre, and then the first delay comes to the left, then a second delay goes to the right, then he could sing and make three-part harmonies out just by harmonising with himself as he comes back ‘round into his headphones. The delay was done by using two stereo Studer machines, then instead of running the tape from one wheel to the other - the way you normally run a tape machine - we actually ran it from one wheel through and then off the machine and then straight to a different machine and then playing back on a different machine, so the tape would actually be running across the room. So, I can't remember how far away they would spread but I'm sure there was a few chairs and lamps and coat hooks hanging around that we sort of hooked it over so we ended up with the right delay.