The Halo 5: Guardians sound track will go on sale on the 30th of October 2015 three days after the release of the game. It will have 39 tracks and come on 2 disks. Below is a link to the Amazon MP3 samples some track names may contain spoilers for the game.
Halo 5 OST Disk 1, Track 1. Halo Canticles (HALO Memes)
