General Grievous's theme

"Every fan of Star Wars—and of great music—is in his debt."

- George Lucas about John Williams' scores

"General Grievous' Theme" is a piece written by John Williams for the Revenge of the Sith soundtrack. It represents the character Grievous. It was performed by the London Symphony Orchestra and the London Voices.

Conception and development
John Williams was contracted to write the score for Revenge of the Sith and did so in 2005. He used the London Symphony Orchestra and London Voices to perform the score. Both are used during "General Grievous' Theme", the main theme used to identify with the character General Grievous.

Summary
The theme appears two times in the soundtrack. However, the track "Grievous Speaks to Lord Sidious" has the purist (that is, most direct and complex) form of the theme. In this track, the theme starts off with a rapid string part. Then the trumpets come in followed by the French horns playing the main melody, which is broken into three sections by short rests. The London Voices come in next, singing between the French horn phrases. The theme ends suddenly as the chorus and orchestra drop off all at once.

In the movies
The theme is exclusively used in Revenge of the Sith. It appears in the scene aboard the Invisible Hand when Grievous is seen for the first time in the film. It appears a second time in the scene showing Grievous arriving on Utapau in a Neimoidian shuttle.

In the soundtracks
The theme appears four minutes and forty-six seconds into the track "Star Wars and The Revenge of the Sith" on the Revenge of the Sith soundtrack. It then appears again in the track "Grievous Speaks to Lord Sidious".