That's four different kind of guitars. I was very keen in those days on recreating that sort of atmosphere. I mainly got the sound with small amplifiers. I used John Deacon's little amplifier and a volume pedal. For the trombone and trumpet sounds. I would record every note individually: Do it and then drop in. Incredibly painstaking! It took ages and ages. I listened to a lot of traditional jazz music when I was young, so I tried to get the phrasing as it would be if it were played by that instrument.