From the release:
Plate Mail Games has released a brand new free tabletop Mp3 called Volcanic Cavern. This 10 minute long track is meant to be played in the background while the adventure unfolds. The track delivers steady location sound so the GM can control the pace of the action while at the same time adding depth to the story. This free track if meant to be an introduction to tabletop gaming audio produced by Plate Mail Games. Volcanic Cavern is available on RPGnow.com for download now.