This little church has been playing a John Cage piece called Organ²/ASLSP (As SLow aS Possible) since 5 Sep 2001. The note played changes, on average, only once a year and is reckoned to be both the slowest and longest duration performance in the world since the concert is scheduled to end on 5 Sep 2640. The next date when something "exciting" happens will be 5 Sep 2020.