All music is composed by Michael Giacchino, except where noted. There are various instances throughout the score that contain hints to previous themes composed by Williams. These include the end of "Gyrosphere of Influence" which references the theme from Jurassic Park, as well as both "Costa Rican Standoff" and "Our Rex is Bigger Than Yours" that reference motifs used in Jurassic Park's sequel, The Lost World: Jurassic Park. The track "Raptor Your Heart Out" also briefly features a cue composed by Giacchino for the video game adaptation of The Lost World: Jurassic Park. Tim Simonec orchestrated and conducted the score, with Jeff Kryka, Susie Bench, Peter Boyer, Brad Dechter, Mark Gasbarro, Norman Ludwin, Cameron Patrick and Chris Tilton serving as additional orchestrators. There are many tracks that were not included in the official soundtrack, such as the music played during the scene at the Jurassic Park Visitors Center, which features a piano rendition of the original Jurassic Park theme. These tracks are included in the film's complete score, which was unofficially released on December 31, 2016