Deacon graduated with honors in Electronics from Chelsea College in 1972. He immediately used these skills to build the legendary, homemade “Deacy Amp” out of spare radio parts. This tiny amplifier became a foundational element of Queen’s sonic identity, allowing Brian May to layer his guitar tracks to sound like an entire orchestra. In the early days, Deacon also acted as the band’s de facto technician, fixing gear and optimizing their live stage sound.

Though initially intimidated as the “new boy” and content to leave the songwriting to Mercury and May, Deacon slowly emerged as a powerhouse pop-funk songwriter. His first solo composition was “Misfire” on the 1974 album Sheer Heart Attack, introducing a softer rhythm style to the band. In 1975, he broke through globally by writing the massive hit “You’re My Best Friend” for the seminal album A Night at the Opera. He famously played the electric piano on the track because Mercury refused to touch the instrument. He closed out the decade by writing fan favorites like “Spread Your Wings” (1977) and “In Only Seven Days” (1978).

While his bandmates embraced the chaotic, lavish lifestyle of 1970s rockstars, Deacon remained grounded. Possessing a highly methodical mindset, he took over Queen’s business affairs and financial management after they severed ties with their early, exploitative management contracts. Freddie Mercury frequently noted that Deacon was the savior of Queen’s finances, keeping the band from going broke during their rise to fame.

Deacon purposefully stayed out of the limelight. He famously hated interviews, rarely spoke into microphones on stage, and used Mercury’s massive stage persona as a shield to protect his own privacy. While Queen conquered the world, Deacon quietly married his wife Veronica in 1975 and began raising a family away from the paparazzi.