Released

Released is a song from the Halo 3: Original Soundtrack. It plays during the level Sierra 117. It includes the tracks Released, Wild Life, and Another Walk.

It starts with a single low note, followed by a section of drums. After that, another layer of high strings is added in. At around 0:50, choir takes on the main melody; the melody is similar to the choir sections of Halo 2.
Later on, drums once again are the dominant instrument. At around 3:05, the slow drum beat is replaced by a faster and louder drums section.

This song also sounds a lot like the music from the Halo 2 level Uprising, especially at around 4:30. Wild Life is a remake of the secon part of Impend, and Another Walk is A Walk in the Woods/Heretic, Hero remake.

It runs for 5:20.