The entire Halo 5 soundtrack has recently been put up online by 343 Industries. The new soundtrack can be listened to on 343's official Soundcloud page. In the past 343 has used Soundcloud to share other Halo 5 promotional content, so it's quite the surprise to see the full soundtrack go up online for free.
Most of the tracks have never been played before, whilst some of the more familiar sounds, such as the composition of Halo Canticles, may be recognized by some Halo 5 fans. In previous Halo games, the name to be remembered for Halo soundtracks was Marty O' Donnell, but this time round Kazuma Jinnouchi has been given the steering wheel. Jinnouchi has been renowned for other compositions, including the soundtrack for Metal Gear Solid 4: Guns of the Patriots.
Even though the full Halo 5 soundtrack can be listened to for free on Soundcloud, the same soundtrack can be purchased in physical format on Amazon for $23. The soundtrack is available in physical CD and in Vinyl.
Whilst the soundtracks can be purchased and listened to today, Halo 5: Guardians does not actually become available until next week on October 27. It was previously revealed that on day one Halo 5: Guardians will include a day one patch that will take up 9GB worth of internal memory. The digital version of Halo 5 will also have a 46GB download size. In total, owners of the digital version of Halo 5: Guardians will need to install 55GB worth of content. Fortunately the base 46GB can already be preloaded.