[2] He played and wrote the music for their albums Punks Not Dead, Troops Of Tomorrow and Let's Start a War.

He also played and wrote many of their single releases, the most famous being "Dead Cities" which they performed on Top of the Pops in 1981.

He then went on to play in several bands including Human Zoo, Crazy Maybe, and Blood Uncles, and then in 1988 joined Goodbye Mr Mackenzie[3] (with future Garbage singer Shirley Manson).

In 2019, he joined with remaining bandmates for a Goodbye Mr Mackenzie 30th anniversary reunion tour.

[3] Duncan worked with many other bands during his career including Twisted Sister, the Foo Fighters and Ministry.