John Deacon, being totally in his own world, came up with this thing, which was nothing like what we were doing. We were going for the big drum sound: you know, quite pompous in our usual way. And Deakey says, 'No, I want this to be totally different: it's going to be a very tight drum sound.' It was originally done to a drum loop - this was before the days of drum machines. Roger did a loop, kind of under protest, because he didn't like the sound of the drums recorded that way. And then Deakey put this groove down. Immediately Freddie became violently enthusiastic and said, 'This is big! This Is important! I'm going to spend a lot of time on this.'