Deacon’s contributions in keyboards were mostly just background chords; his most notable work is in his composition “You’re My Best Friend”, which was the first song he wrote on the electric piano. Deacon also played triangle in live versions of “Killer Queen” (it hung off his microphone) and some piano (notably on “Another One Bites the Dust”). He can also be seen playing the drums on the video for “One Vision”. This is perhaps a visual trick, although he did play drums on certain tracks on “Hot Space”. He also helped producer David Richards compose on synthesizer a slap-bass style lead for the verses of “The Invisible Man” from The Miracle album, while the chorus retains Roger Taylor’s melody from an earlier demo.