In his early years, Miller worked for the London production house Stock Aitken Waterman as staff producer, mixer, and songwriter, and was later part of the Metrophonic team.

[7] Miller started his music career during the 1980s as a guitarist, touring with Nik Kershaw's backing band The Krew.

[8] In 1988, Miller was musical director for Deon Estus, who was the opening act for several shows on George Michael's The Faith Tour.

The mostly unreleased Rock Against Trafficking (RAT) album project, which was produced by Miller in 2014, is called Set Them Free, and features The Police and Sting covers performed by various well-known artists, such as members of the rock band Journey, Heart, Carlos Santana, Slash, Julian Lennon, Ellis Hall, and En Vogue.

"Roxanne", the first single from the Set Them Free album, which was performed by Glenn Hughes of Deep Purple, has been released on 11 January 2018.