Legendary composer John Williams has selected four music queues from the Jurassic Park movie to add to the soundtrack’s 20th anniversary re-release for the first time ever.

The re-release comes ahead of Jurassic Park 3D’s release in theaters on April 5th. According to Music Connection, these four songs “were chosen by Williams in conjunction with his music editor, Ramiro Belgardt. Williams and Belgradt went back through all of the master tapes of the film to spot cues that were not released on the original album.”

The new track listing is as follows. The new songs are tracks 17 through 20:

1. Opening Titles
2. Theme From Jurassic Park
3. Incident At Isla Nublar
4. Journey To The Island
5. The Raptor Attack
6. Hatching Baby Raptor
7. Welcome To Jurassic Park
8. My Friend, The Brachiosaurus
9. Dennis Steals The Embryo
10. A Tree For My Bed
11. High-Wire Stunts
12. Remembering Petticoat Lane
13. Jurassic Park Gate
14. Eye To Eye
15. T-Rex Rescue & Finale
16. End Credits
17. The History Lesson
18. Stalling Around
19. The Coming Storm
20. Hungry Raptor

You can purchase the 20th anniversary soundtrack through iTunes.

Hypable reader Derrick passed along interesting information about where these new tracks are heard in the film:

17. “The History Lesson” (2:28) = The Entrance of Mr. Hammond (John talking with Grant and Sattler at the dig site), The History Lesson (Grant with Tim and Lex in the jeeps)
18. “Stalling Around” (2:32) = Cartoon Demonstration (Mr. DNA music)
19. “The Coming Storm” (3:58) = The Coming Storm (right after the Trike visit), 9m2 The T-Rex Chase (!!!), 1m2 The Encased Mosquito (at the dig with Grant and Ellie)
20. “Hungry Raptor” (2:05) = Hungry Raptor (the original Raptors in the Shed music, as heard partially in the end credits of the “Making Of” and partially in the film, leading to Muldoon’s death)

Total time of new tracks: 11:03

He also told us there are now only three unreleased tracks of music, and they are as follows:

- “You Bred Raptors” (0:30) (Grant’s line as he holds the baby raptor)
- “The Trouble With Dennis” (1:15) (when Dennis is driving around in the rain)
- “Untitled” (0:49) (on the sheet music it’s untitled, but it is sometimes called “System Ready,” and it’s right after Arnold shuts down the computers)