Vast, the creator’s original track, now accompanies the observatory. The music loops, keeps playing as you move between reading views, and gets quieter while you read.

Sound is requested at arrival. Firefox can block audible autoplay on page load; Enter AgenticSRE or the Sound control gives playback the interaction it needs. A quiet first screen can be the browser doing exactly what its listener asked.

Mute and volume are remembered in this browser. Hidden tabs pause the track, and a saved mute avoids downloading it at all.