There are few games whose soundtrack gets as much attention pre-launch as Halo, so when a quarter of an hour of the latest music from the franchise gets uploaded, you can bet we'll be listening.
Some enterprising soul has recorded the score from the beta's main menu onto YouTube, which seemingly interweaves a few different themes from the score through its 15 minute run time. Give it a listen here before its pulled.
You can read our impressions from of Halo 5's Gamescom demo here.