The first one is called Distorted Trumpets, while the second one, whose pitch has been raised, is called Is that the Door?

Radio is composed of two samples that come from the 1995 sample library Cuckooland: Ghost in the Machine from Zero-G, composed by Ian Sanderson and Simon Mills.

Xen Relay is a renaming of Threatening Short.

Neutrino Trap is a renaming of Hurricane Strings.

Dirac Shore is a renaming of Dimensionless Deepness.Escape Array is a renaming of Electric Guitar Ambience.Negative Pressure is a renaming of Steam In The Pipes.Tau-9 is a renaming of Drums and Riffs.Pulse Phase is actually a truncated version of Dark Energy, slowed down by 50%.Something Secret Steers Us is a renaming of Nuclear Mission Jam.Biozeminade Fragment is a remix of Alien Shock.Tracking Device is a remix of Credits / Closing Theme.Triple Entanglement is Sirens in the Distance, without the first few seconds as well as slowed and pitched down.Echoes of a Resonance Cascade is a renaming of Space Ocean.Singularity is a renaming of Traveling Through Limbo.Black Mesa Inbound is a renaming of Vague Voices.Lambda Core is a renaming of Diabolical Adrenaline Guitar.Zero Point Energy Field is a renaming of Cavern Ambience.Hazardous Environments is a renaming of Valve Theme (Extended).Many of the songs on the Soundtrack are either remixes or simple name changes of songs from the Half-Life Soundtrack:.CP Violation is a violation of charge conjugation parity symmetry) in particle physics.Tau-9 is a reference to the Tau Cannon present in the Scout Car.Something Secret Steers Us is taken from the Vortigaunts quote ' Something secret steers us both.Tracking Device is a reference to the fact that the HECU and the Combine have been using the tracking device in Freeman's HEV suit to easily track and ambush him.Mossman's speech about how they control a Xen Relay. Zero Point Energy Field is a reference to the Zero Point Energy Field Manipulator.Kleiner while checking teleporter parameters moments before teleporting Alyx. LG Orbifold is a theoretical physics geometry term mentioned by Dr.

Triage at Dawn references the same situation the player finds himself at the point it is played Triage of Winston at dawn break.Bailey's affinity for wordplay is evident in his track titles, as they often reference real world subjects as well as in-game facts:.Plays in Anticitizen One while the TV with G-Man on it is turned on.

Half life 2 airboat