Cann established himself in London, where he formed his first band, along with Huw Lloyd-Langton, future Hawkwind member, on guitar and Rob Rawlinson, later in Overnight Angels, on bass.
The band recorded sole single "Ain't Misbehavin'", which was released in 1975 and used as a main theme to the namesake softcore porno film.
After a tour of United States and Canada the band fragmented because of the departure of vocalist John Foxx and guitarist Robin Simon.
In 1982 he played acoustic and electronic percussion for Zaine Griff (album "Figvres") and Peter Godwin (single "Images of Heaven").
Ronny also participated in the Helden project, formed by Cann and Zimmer that year, which merged electronic, orchestral and classical influences.
[citation needed] In his autobiography, Midge Ure later commented that in retrospect he considered the firing unjust, unwarranted, and a result of misplaced tensions,[3] describing Cann's dismissal as "cutting the band's jugular vein".
He did session work for other artists, including 7000 Danses by Indochine, appeared on several television shows with Kim Wilde and produced demos for aspiring bands.
[citation needed] Cann and his technicians were among the first to modify commercially available rhythm units or drum machines, so they could alter and override the preset manufacturer programs.
Among claims that he was doing nothing, he decided to equip his drum machines with clear perspex cases instead of wood panels, and mount a variety of LEDs inside them as a feature Cann himself described as "absolutely useless, but very impressive looking on a darkened stage; now it would be obvious I was actually doing something."
According to Midge Ure's autobiography, when the Minimoog broke down on tour, Ultravox borrowed one from The Cars, but it didn't help as it lacked the proprietary modifications.