John Cage wrote the song As Slow As Possible in 1985 about the fast-paced life that people are living today. As the name implies, the song is played as slow as possible by the performer. There is even speculation that this work will be played indefinitely. To this day, no one other than the composer himself knows its exact speed.
In 2001, Sankt Burchadi Church in Halberstadt rose to the challenge of song by operating an automatic organ that was set to play the song for 639 years. Although 639 years seems like a random number, they are actually the result of subtracting 1361 (the year the first modern organ was built) by 2000 (the year this project started). The project is codenamed “Organ²/ASLSP” because this automatic organ was built from the blueprints of the first modern organ (Organ²) and ASLSP is just an acronym for “As Slow As Possible” .
Perhaps the interesting thing about this concert is that people don’t hear the first sound two years after the show begins, because the first note of the piece is a silence. 360 concertgoers paid real money to “hear” that first note. The second and third sounds are one year apart. Sometimes it’s not unusual for a chord to last for many years.
If you want your name to be immortalized in this concert, you will have to spend 1,000 Euros to maintain and build the pipes to finish playing the piece. A plaque with your name and desired year will be on display in the church for all to see.
(According to Knowledgenuts)