Revell was a founding member of the industrial music band SPK, playing keyboards and percussion. The SPK single, "In Flagrante Delicto", was the basis for the Dead Calm film score (his first) that won him an Australian Film Industry award.
In 2002-03, he assisted the rock band Evanescence on their debut album, Fallen, in which he is credited for doing most of the string arrangements.
Revell's musical style is predominantly electronic and computer-based, yet often utilizes classical instruments or entire arrangements for certain pieces (similar to his contemporary counterparts, Hans Zimmer and Mark Isham). The orchestral scores that Revell has composed have changed throughout his career—from Bernard Herrmann-like pieces to Ennio Morricone-influenced works.
Revell's music is often re-used from movie to movie and in more recent times he has collaborated with other artists on their albums. After the success of his soundtrack on Red Planet where he used the voice of French singer Emma Shapplin to back up and often lead his score, he collaborated with her on her own album Etterna, producing all of her songs. He has recently been interviewed for the independent documentary Finding Kraftland.