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8 September 2020, 14:00 | Updated: 8 September 2020, 16:45
This Saturday in Germany, a single organ chord held for 2,527 days changed and it was kind of a big deal.
Often a typical performance would last about an hour, but Cage didn’t suggest a tempo marking in his original score. This of course presented a challenge to quirky music enthusiasts: how could this piece be played truly, ‘as slow as possible?’
Many pianists and organists have performed this piece in single durations of up to, and beyond, 12 hours.
In 2001, an ambitious group of artists with a lot of time on their hands began work at a specially-built organ at St. Burchardi Church in Halberstadt, Germany.
Their interpretation of ‘As Slow as Possible’ has a scheduled duration of 639 years ending with, we hope, rapturous applause in the year 2640.
Over the coming centuries, the St. Burchardi organ will slowly sound out the score and note changes, as outlined in this annotated score:
John Cage's "Organ²/ASLSP (As Slow as Possible)" has been playing on the organ of a church in Halberstadt, Germany since 2001. (The performance runs until 2640.) This Saturday, the chord that has been held since 2013 will change. https://t.co/m7ITed4U5M pic.twitter.com/QAeP1nbop7— Matthew Anderson (@MattAndersonNYT) September 2, 2020
Before Saturday, the most recent note change occurred on 5 October 2013. On 5 September 2020, the organ was reconfigured to playing a G sharp and an E. The next scheduled chord change is on 5 February 2022.
Do you have some time? 🕰— DW Culture (@dw_culture) September 4, 2020
This is a 639-year-long music performance.
The music is based on a work by US avant-garde composer John Cage.
Tomorrow, after 7 years, the organ in Halberstadt will finally play new notes. 🎼🎹
The composition is set to run until 2640.@JohnCageTrust pic.twitter.com/oGY9BQtpAd
On Saturday afternoon crowds gathered in the church to see the G sharp and E notes meticulously installed. Here's a view of the scene.
The afternoon and the all-important harmonic moment was also live-streamed on YouTube. You can watch it below. The chord change moment comes at 3 hours, 20 minutes in. But if you're not willing to watch the four-hour stream in full, we might question your level of commitment to this 639-year performance...
Find out more and support this performance on the project’s website.