The John Cage work performed over 639 years – DW – 09/04/2020
John Cage Organ Project in Halberstadt
John Cage Orgelprojekt (Halberstadt) - All You Need to Know BEFORE You Go
The world's slowest musical composition, John Cage's 'As Slow as Possible,' changes chord for first time in seven years | CNN
John-Cage-Projekt in Halberstadt: Hochamt der Entschleunigung
Burchardi Kloster
Hear John Cage's Slowest Piece of Music in the World in Halberstadt
31 August 2020, Saxony-Anhalt, Halberstadt: The organ of the John Cage Organ Foundation Halberstadt inside the Burchardi Church. The organ has been playing the music piece "ORGAN2/ASLSP" by John Cage without interruption
John Cage Organ Project
An Organ Recital for the Very, Very Patient - The New York Times
Schatzjahre Halberstadt: Pssst...Wofür steht die Zahl 639?
As Slow as Possible - Wikipedia
A 639-year-long John Cage organ piece had a very rare chord change. And it was... - Classic FM
A 639-Year Concert, With No Intermission for Coronavirus - The New York Times
German church hosting John Cage's 639-year-long organ piece installs new chord | What's Viral
File:John Cage Orgel Kloster St. Burchardi Halberstadt.jpg - Wikimedia Commons
Das längste Konzert der Welt - John Cage-Orgel-Kunstprojekt in St. Burchardi zu Halberstadt
Halberstadt - Das 639 Jahre dauernde Orgelstück von John Cage - YouTube
John Cage Organ Art Project Halberstadt
File:John Cage Orgel Balganlage Kloster St. Burchardi Halberstadt.jpg - Wikimedia Commons
As SLow aS Possible - Long Now
