Just an Aeon
You've heard of Just a Minute? The BBC Radio panel game in which the contestants are challenged to speak for one minute without hesitation, deviation or repetition? Well, this is Longplayer, a musical composition that has been running since December 31st 1999, and is intended to run for 1,000 years without repetition. You can listen to it from this page, if you'd like; it's actually quite calm and beautiful. When the lighthouse is open, you can sit inside and listen.