The tracks can also be obtained by navigating to steamapps\sourcemods\BMS\sound\music in the mod, or extracting the steamapps\common\Black Mesa\bms\bms_sounds_misc_dir.vpk archive file of the Steam release with an appropriate program. Both albums were released before the respective parts of the game, they can be listened for free on YouTube or bought on several other platforms. It consists of two albums, the first one featuring the tracks from the earth-bound portion of the game with all the Xen-related tracks released later in the second album. The Black Mesa soundtrack was composed by Joel Nielsen.
