View source for As Slow as Possible

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{{short description|Musical composition by John Cage}}
{{About|the musical piece|the GIF of a similar name|As Long As Possible}}
{{Use mdy dates|date=February 2024|cs1-dates=y}}
[[Image:Halberstadt St-Burchardi-Kirche.jpg|thumb|right|upright=1.3|St. Burchardi church in [[Halberstadt]], Germany]]
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'''''ORGAN<sup>2</sup>/ASLSP''''' ('''''As Slow as Possible''''') is a musical piece by [[John Cage]] and the subject of the second-longest-lasting (after ''[[Longplayer]]'') musical performance yet undertaken.<ref>{{Cite news |last1=Oltermann |first1=Philip |date=February 4, 2024 |title='There's a certain madness to it' … fans await new chord in John Cage gig with 616 years left to run |url=https://www.theguardian.com/music/2024/feb/04/john-cage-gig-2640-german-church-halberstadt-st-burchardi- |access-date=February 5, 2024 |work=The Observer |language=en-GB |issn=0029-7712}}</ref> Cage wrote it in 1987 for organ, as an adaptation of his 1985 composition ''ASLSP'' for piano. A performance of the piano version usually lasts 20 to 70 minutes.<ref name="bbc resume">{{Cite news |date=July 5, 2008 |title='World's longest concert' resumes |language=en-GB |url=http://news.bbc.co.uk/2/hi/europe/7490776.stm |access-date=September 5, 2023 | first=Steve |last=Rosenberg}}</ref>

An organ in St. Burchardi church in [[Halberstadt]] in 2001 began a performance that is [[3rd millennium#27th century|due to end in 2640]]. This makes it the longest running non-computerized piece currently being performed. The most recent note was played on February 5, 2024. The next note will be played on August 5, 2026.{{Update after|2026|08|05}}

==History==
The Friends of the [[Maryland]] Summer Institute for the Creative and Performing Arts commissioned the piece for contemporary requirement of a piano competition. Cage used an open format to ensure no two performances would be the same, and give judges a break from the consistency of most compositions. The [[Sheet music|score]] is eight pages.

==Record performances==
{| class="wikitable sortable"
|-
! Performer(s) !! Duration in hours !! Start time !! Location !! Notes
|-
| Francesco Pio Gennarelli || 25.003 || 2025, March 4 14:10pm || Streamed Live on [[YouTube]] from [[Middlesex University]] || The performance was also open to the public to walk in and listen at any time. It can be viewed in its entirety on YouTube.<ref>{{cite web|url=https://www.youtube.com/watch?v=JsNE-2K-uEk&ab_channel=francescopio |title= francesco pio: As Slow As Possible Part 1 - 25-hour |date= March 7, 2025 | publisher=YouTube |access-date=February 28, 2022}}</ref> Current world record holder for longest live performance of a single musical piece performed by a human.
|-
| AllRequest_Live "Albert Wright" || 24.001 || 2022, February 4 12:00pm || Streamed Live on [[Twitch (service)|Twitch]] from an undisclosed location || The performance can be viewed in its entirety on YouTube.<ref>{{cite web|url=https://www.youtube.com/watch?v=401zHs3Mxuc.shtml |title= AllRequest: As Slow As Possible 24 Hour Performance |date= February 13, 2022 | publisher=YouTube |access-date=February 28, 2022}}</ref>
|-
|Alexander Meszler
|24
|2023, January 29 5:00 P.M.
|[https://www.luther.edu/wp-content/uploads/2023/01/Organs-at-Luther-College.pdf Sundt Organ Studio],
[https://www.luther.edu/ Luther College]
|The longest performance on a pipe organ (organist on the bench). Streamed online and open to the public.<ref>{{Cite news |last=Chan |first=Carson |date=2024-06-05 |title=Can John Cage’s 639-Year Organ Rethink Our Relationship to Space? |url=https://www.frieze.com/article/carson-chan-john-cage-244 |access-date=2025-06-07 |work=Frieze |language=ko |issue=244 |issn=0962-0672}}</ref><ref>{{Cite web |date=2023-03-21 |title=March 21, 2023 Driftless Journal |url=https://issuu.com/driftlessmultimedia/docs/dj_03212023_full |access-date=2025-06-07 |website=Issuu |language=en}}</ref> [https://issuu.com/fullec2/docs/2023-01-29_alexander_meszler_program_notes Program notes from the organist]. 
|-
| Diane Luchese || 14.93 || 2009, February 5 8:45am || [[Towson University]] || Until 2022, it was the longest completed performance.<ref>{{cite web|url=http://media.www.thetowerlight.com/media/storage/paper957/news/2009/02/05/Arts/Fifteen.Hours.At.The.Organ-3613444.shtml |title=The Towerlight, Fifteen hours at the organ |publisher=Media.www.thetowerlight.com |access-date=August 30, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20090210201000/http://media.www.thetowerlight.com/media/storage/paper957/news/2009/02/05/Arts/Fifteen.Hours.At.The.Organ-3613444.shtml |archive-date=February 10, 2009 }}</ref> Previous world record holder for longest live performance of a single musical piece performed by a human.
|-
| Alex Ross, Patrick Wedd, Adrian Foster || 8 || 2015 || Christ Church Cathedral, [[Montreal]] || World record holder for longest live performance of a single musical piece performed by a team of humans.
|-
| [[Frank Felice]] || 3.5 || 2016 || Online || Performance was delivered online to an [[iPhone]] app for ArtsFest 2016 at [[Butler University]]. A thirty-five second snippet was posted each day for a year; the whole three and a half hour realization was played as a fixed media piece during the three-day Artsfest. The performances could be considered to take 35 seconds, 3.5 hours, 3 days, or 1 year (the time used here is for the single performance of the entire piece) <ref>{{cite web | url=https://www.frank-felice.com/john-cage-aslap | title=John Cage ASLSP }}</ref> 
|}

==Halberstadt performance==
[[Image:HalberstadtBurchardiChurchBellows.jpg|thumb|The bellows used for the Halberstadt performance]]

[[Image:HalberstadtBurchardiChurchOrganForOrgan2ASLSP.jpg|thumb|The organ used for the Halberstadt performance]]

===Background===
Musicians and philosophers discussed Cage's instruction to play "as slow as possible" at a conference in 1997, because a properly maintained pipe organ could sound indefinitely. The John Cage Organ Foundation Halberstadt decided to play the piece for 639 years, to mark the time between the first documented permanent organ installation in [[Halberstadt Cathedral]], circa 1361, and the originally proposed start date of 2000. Because of a lack of money, the date was postponed by one year.<ref name="bbc-firstnotes">{{Cite news |date=February 5, 2003 |title=First notes for 639-year composition |language=en-GB |url=http://news.bbc.co.uk/2/hi/entertainment/2728595.stm |access-date=September 5, 2023}}</ref> The chord changes of the first part which ends in 2072 were calculated by Christoph Bossert and [[Rainer O. Neugebauer]]. Until August 2021 the Foundation sold plaques commemorating the years through 2640 to fund the performance.<ref>{{cite web|url=https://daily.redbullmusicacademy.com/2019/04/halberstadt-john-cage-organ-feature|title=A Visit to John Cage's 639-Year Organ Composition|first=Aaron|last=Gonsher|website=redbullmusicacademy.com}}</ref><ref>{{cite web|url=https://www.aslsp.org/Stiftertafel-Übersicht.html/|title=Alle Stiftertafeln sind vergeben|access-date = July 22, 2023|archive-url=https://web.archive.org/web/20230522090035/https://www.aslsp.org/Stiftertafel-Übersicht.html/|url-status=dead|archive-date = May 22, 2023}}</ref>

===The instrument===
An organ was built specifically for the performance.<ref>{{cite web|url=https://www.atlasobscura.com/places/sankt-burchardi-church-organ|title=Sankt Burchardi Church Organ|publisher=atlasobscura.com|access-date=December 20, 2018}}</ref> It is in the church's right transept, with the [[bellows]] in the left transept.

Until 2011, [[acrylic glass]] encased it to reduce the volume, likely due to potential noise complaints.<ref>Archived at [https://ghostarchive.org/varchive/youtube/20211205/FaABvYVfiuA Ghostarchive]{{cbignore}} and the [https://web.archive.org/web/20141231152405/https://www.youtube.com/watch?v=FaABvYVfiuA Wayback Machine]{{cbignore}}: {{cite web| url = https://www.youtube.com/watch?v=FaABvYVfiuA| title = 5 Min 48 sek von 639 Jahren: JOHN CAGE ORGAN 2 / ASLSP IN HALBERSTADT | website=YouTube| date = July 30, 2009 }}{{cbignore}}</ref>

===Performance===
The Halberstadt performance started on September 5, 2001, with a rest lasting until February 5, 2003, when the first pipes played.<ref>{{Cite web|url=https://www.aslsp.org/de|title=News – John-Cage-Orgelprojekt Halberstadt|website=www.aslsp.org|access-date=December 8, 2019|archive-date=September 7, 2021 |archive-url=https://web.archive.org/web/20210907140232/https://www.aslsp.org/de/|url-status=dead}}</ref><ref name=Halberstadteventsite>{{cite web|url=http://www.john-cage.halberstadt.de/new/index.php?seite=cdundtoene&l=e |title=the Halberstadt event website |publisher=John-cage.halberstadt.de |date=November 19, 2004 |access-date=August 30, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110722045416/http://www.john-cage.halberstadt.de/new/index.php?seite=cdundtoene&l=e |archive-date=July 22, 2011}}</ref> [[Sandbag]]s depress the organ's pedals to maintain the notes.<ref name="bbc resume" /> On July 5, 2008, two more organ pipes were added alongside the four already installed and the tone became more complex at 15:33 local time. The bellows provide a constant supply of air to keep the pipes playing.<ref>{{cite news|url=http://dw.de/p/EX0w |title=One Thousand Hear Change of Note in World's Longest Concert |agency=[[Deutsche Presse-Agentur]] |work=[[Deutsche Welle]] |date=July 5, 2008 |access-date=August 30, 2011}}</ref> On July 5, 2012, two more organ pipes were taken out, and two were in the organ. The note last changed on February 5, 2024. The performance is scheduled to end on September 4, 2640.

{{Listen
|filename= Halberstadt_Germany_ASLSP_2006-01-05-17h.ogg
|title="''ASLSP'', Halberstat, Jan 5 2006 note change"
|description=The note change of January 5, 2006, takes place at 8:35 in this audio clip.
|format=[[Ogg]]
}}

{|
|+John Cage ''ORGAN<sup>2</sup>/ASLSP'' (639 years, part 1: 70 years)<ref>{{Cite web|url=https://www.aslsp.org/de/klangwechsel.html|title=Klangwechsel – John-Cage-Orgelprojekt Halberstadt|website=www.aslsp.org|access-date=December 8, 2019|archive-date=September 10, 2021 |archive-url=https://web.archive.org/web/20210910133331/https://www.aslsp.org/de/klangwechsel.html|url-status=dead}}</ref>
|-valign="top"
|
{| class="wikitable"
! Impulse || Action || Notes || align="right" | Date || align="right" | Chord<br>length
|-
|1 || Begin||none || align="right" | September 5, 2001|| align="right" |
|-
|2 || Sound|| G{{music|#}}<sub>4</sub>, B<sub>4</sub>, G{{music|#}}<sub>5</sub> || align="right" | February 5, 2003|| align="right" | 518&nbsp;d
|-
|3 || Sound|| E<sub>3</sub>, E<sub>4</sub> || align="right" | July 5, 2004|| align="right" | 516&nbsp;d
|-
|4 || Release|| G{{music|#}}<sub>4</sub>, B<sub>4</sub> || align="right" | July 5, 2005|| align="right" | 365&nbsp;d
|-
|5 || Sound|| A<sub>4</sub>, C<sub>5</sub>, F{{music|#}}<sub>5</sub> || align="right" | January 5, 2006|| align="right" | 184&nbsp;d
|-
|6 || Release|| E<sub>3</sub>, E<sub>4</sub> || align="right" | May 5, 2006|| align="right" | 120&nbsp;d
|-
|7 || Sound|| C<sub>4</sub>, A{{music|b}}<sub>4</sub> || align="right" | July 5, 2008|| align="right" | 792&nbsp;d
|-
|8 || Release|| C<sub>4</sub> || align="right" | November 5, 2008|| align="right" | 123&nbsp;d
|-
|9 || Sound|| D<sub>4</sub>, E<sub>5</sub> || align="right" | February 5, 2009|| align="right" | 92&nbsp;d
|-
|10 || Release|| E<sub>5</sub> || align="right" | July 5, 2010|| align="right" | 515&nbsp;d
|-
|11 || Release|| D<sub>4</sub>, G{{music|#}}<sub>5</sub> || align="right" | February 5, 2011|| align="right" | 215&nbsp;d
|-
|rowspan="2" |12 || Sound || C<sub>4</sub> ([[Eight-foot pitch|16′]]), D{{music|b}}<sub>4</sub> (16′) || rowspan="2" align="right" | August 5, 2011|| rowspan="2" align="right" | 181&nbsp;d
|-
|Release || A{{music|b}}<sub>4</sub>
|-
|13 || Release|| A<sub>4</sub>, C<sub>5</sub>, F{{music|#}}<sub>5</sub> || align="right" | July 5, 2012|| align="right" | 335&nbsp;d
|-
|14 || Sound|| D{{music|#}}<sub>4</sub>, A{{music|#}}<sub>4</sub>, E<sub>5</sub> || align="right" | October 5, 2013|| align="right" | 457&nbsp;d
|-
|15 || Sound|| G{{music|#}}<sub>3</sub>, E<sub>4</sub> || align="right" | September 5, 2020|| align="right" | 2,527&nbsp;d
|-
|16 || Release|| G{{music|#}}<sub>3</sub> || align="right" | February 5, 2022|| align="right" | 518&nbsp;d
|-
|17 || Sound|| D<sub>4</sub> || align="right" | February 5, 2024|| align="right" | 730&nbsp;d
|-
|18 || Sound|| A<sub>4</sub> || align="right" | August 5, 2026|| align="right" | 912&nbsp;d
|-
|19 || Release|| E<sub>4</sub> || align="right" | October 5, 2027|| align="right" | 426&nbsp;d
|-
|20 || Sound|| G<sub>3</sub> || align="right" | April 5, 2028|| align="right" | 183&nbsp;d
|-
|21 || Release|| D<sub>4</sub> || align="right" | August 5, 2028|| align="right" | 122&nbsp;d
|-
|22 || Release|| A<sub>4</sub> || align="right" | March 5, 2030|| align="right" | 577&nbsp;d
|-
|23 || Release|| D{{music|#}}<sub>4</sub>, E<sub>5</sub> || align="right" | September 5, 2030|| align="right" | 184&nbsp;d
|-
|24 || Release|| G<sub>3</sub> || align="right" | May 5, 2033|| align="right" | 973&nbsp;d
|-
|25 || Sound|| B<sub>3</sub> || align="right" | December 5, 2033|| align="right" | 214&nbsp;d
|-
|26 || Sound|| F<sub>3</sub>, D<sub>4</sub> || align="right" | August 5, 2034|| align="right" | 243&nbsp;d
|-
|27 || Release|| F<sub>3</sub>, D<sub>4</sub> || align="right" | September 5, 2034|| align="right" | 31&nbsp;d
|-
|28 || Release|| B<sub>3</sub> || align="right" | October 5, 2034|| align="right" | 30&nbsp;d
|-
|29 || Sound|| D{{music|b}}<sub>5</sub> || align="right" | June 5, 2035|| align="right" | 243&nbsp;d
|-
|rowspan="2" |30 || Sound|| A<sub>2</sub> (16′) || rowspan="2" align="right" | September 5, 2037|| rowspan="2" align="right" | 823&nbsp;d
|-
| Release|| D{{music|b}}<sub>5</sub>
|-
|31 || Sound|| A{{music|b}}<sub>4</sub>, A{{music|b}}<sub>5</sub> || align="right" | March 5, 2038|| align="right" | 181&nbsp;d
|-
|32 || Release|| A{{music|b}}<sub>5</sub> || align="right" | July 5, 2038|| align="right" | 122&nbsp;d
|-
|33 || Release|| A{{music|b}}<sub>4</sub> || align="right" | May 5, 2039|| align="right" | 304&nbsp;d
|}
|
{| class="wikitable"
! Impulse || Action || Notes || align="right" | Date || align="right" | Chord<br>length
|-
|34 || Sound|| D<sub>4</sub>, A{{music|b}}<sub>4</sub> || align="right" | December 5, 2039|| align="right" | 214&nbsp;d
|-
|35 || Release|| D<sub>4</sub>, A{{music|b}}<sub>4</sub> || align="right" | April 5, 2040|| align="right" | 122&nbsp;d
|-
|36 || Sound|| D{{music|b}}<sub>3</sub>, B{{music|b}}<sub>3</sub> || align="right" | January 5, 2041|| align="right" | 275&nbsp;d
|-
|37 || Release|| D{{music|b}}<sub>3</sub>, B{{music|b}}<sub>3</sub> || align="right" | March 5, 2042|| align="right" | 424&nbsp;d
|-
|38 || Release|| A<sub>2</sub> (16′) || align="right" | November 5, 2043|| align="right" | 610&nbsp;d
|-
|39 || Sound|| A<sub>3</sub>, D<sub>4</sub> || align="right" | July 5, 2044|| align="right" | 243&nbsp;d
|-
|rowspan="2" |40 || Sound|| E<sub>4</sub> || rowspan="2" align="right" | March 5, 2045|| rowspan="2" align="right" | 243&nbsp;d
|-
| Release|| A{{music|#}}<sub>4</sub>
|-
|41 || Sound|| B<sub>4</sub>, C<sub>5</sub>, A{{music|#}}<sub>5</sub> || align="right" | March 5, 2046|| align="right" | 365&nbsp;d
|-
|42 || Release|| C<sub>4</sub> (16′), B<sub>4</sub>, C<sub>5</sub>, A{{music|#}}<sub>5</sub> || align="right" | October 5, 2047|| align="right" | 579&nbsp;d
|-
|43 || Sound|| C<sub>3</sub> (16′) || align="right" | February 5, 2049|| align="right" | 489&nbsp;d
|-
|44 || Sound|| D{{music|#}}<sub>4</sub>, A<sub>4</sub> || align="right" | April 5, 2050|| align="right" | 424&nbsp;d
|-
|45 || Release|| A<sub>3</sub>, D<sub>4</sub>, E<sub>4</sub> || align="right" | February 5, 2051|| align="right" | 306&nbsp;d
|-
|46 || Release|| D{{music|#}}<sub>4</sub>, A<sub>4</sub> || align="right" | November 5, 2051|| align="right" | 273&nbsp;d
|-
|47 || Sound|| E{{music|b}}<sub>3</sub>, B<sub>3</sub> || align="right" | May 5, 2053|| align="right" | 547&nbsp;d
|-
|48 || Release|| C<sub>3</sub> (16′) || align="right" | November 5, 2054|| align="right" | 549&nbsp;d
|-
|49 || Release|| E{{music|b}}<sub>3</sub>, B<sub>3</sub> || align="right" | July 5, 2056|| align="right" | 608&nbsp;d
|-
|50 || Sound|| B{{music|b}}<sub>4</sub> || align="right" | August 5, 2057|| align="right" | 396&nbsp;d
|-
|51 || Sound|| A<sub>2</sub> (16′) || align="right" | May 5, 2058|| align="right" | 273&nbsp;d
|-
|52 || Release|| A<sub>2</sub> (16′) || align="right" | November 5, 2059|| align="right" | 549&nbsp;d
|-
|53 || Sound|| G{{music|b}}<sub>4</sub>, C<sub>5</sub>, D{{music|b}}<sub>5</sub> || align="right" | April 5, 2060|| align="right" | 152&nbsp;d
|-
|54 || Release|| G{{music|b}}<sub>4</sub>, C<sub>5</sub>, D{{music|b}}<sub>5</sub> || align="right" | June 5, 2060|| align="right" | 61&nbsp;d
|-
|rowspan="2" |55 || Sound|| E<sub>4</sub> || rowspan="2" align="right" | November 5, 2060|| rowspan="2" align="right" | 153&nbsp;d
|-
| Release|| B{{music|b}}<sub>4</sub>
|-
|56 || Sound|| B<sub>4</sub>, C<sub>5</sub>, E{{music|b}}<sub>5</sub>, C<sub>6</sub> || align="right" | February 5, 2061|| align="right" | 92&nbsp;d
|-
|57 || Release|| C<sub>5</sub>, E{{music|b}}<sub>5</sub>, C<sub>6</sub> || align="right" | April 5, 2061|| align="right" | 59&nbsp;d
|-
|rowspan="2" |58 || Sound|| D<sub>4</sub> || rowspan="2" align="right" | September 5, 2061|| rowspan="2" align="right" | 153&nbsp;d
|-
| Release|| E<sub>4</sub>
|-
|59 || Sound|| A{{music|#}}<sub>3</sub>, D{{music|#}}<sub>4</sub>, F{{music|#}}<sub>4</sub> || align="right" | August 5, 2062|| align="right" | 334&nbsp;d
|-
|60 || Release|| A{{music|#}}<sub>3</sub>, F{{music|#}}<sub>4</sub> || align="right" | February 5, 2064|| align="right" | 549&nbsp;d
|-
|rowspan="2" |61 || Sound|| A<sub>3</sub>, A<sub>4</sub> || rowspan="2" align="right" | January 5, 2067|| rowspan="2" align="right" | 1,065&nbsp;d
|-
| Release|| D{{music|#}}<sub>4</sub>
|-
|62 || Release|| D<sub>4</sub> || align="right" | June 5, 2067|| align="right" | 151&nbsp;d
|-
|63 || Release|| A<sub>3</sub>, A<sub>4</sub> || align="right" | July 5, 2068|| align="right" | 396&nbsp;d
|-
|64 || Release|| D{{music|b}}<sub>4</sub> (16′) || align="right" | March 5, 2071|| align="right" | 973&nbsp;d
|-
|65 || Release|| B<sub>4</sub> || align="right" | July 5, 2071|| align="right" | 122&nbsp;d
|}
|}

==See also==
* ''[[AS Long As Possible (ASLAP)|AS Long as Possible]]'', a GIF-based visual art work named in tribute to ''As Slow as Possible''
* [[List of compositions by John Cage]]
* ''[[Longplayer]]''

==References==
{{reflist}}

==External links==
* [http://www.aslsp.org/ Website of the Halberstadt event] {{in lang|de}}
* [https://www.npr.org/programs/pt/features/2003/sep/aslsp.html ''As Slow As Possible''], Performance Today feature ([[National Public Radio]]), September 2003{{dead link|date=September 2022}}
* Recordings of a nine-hour performance of ''ASLSP'' at [http://www.artsaha.org ''ARTSaha! 2006''] by [https://web.archive.org/web/20060911045353/http://www.analogartsensemble.net/member/Drew.htm Joseph Drew]: [https://web.archive.org/web/20070927182905/http://www.analogartsensemble.net/media/audio/Drew/ASLSP%20Beginning.mp3 Hour One], [https://web.archive.org/web/20070927182746/http://www.analogartsensemble.net/media/audio/Drew/ASLSP%209PM.mp3 Hour Six], [https://web.archive.org/web/20070927182551/http://www.analogartsensemble.net/media/audio/Drew/ASLSP%20END.mp3 Hour Nine]
* [http://www.zeit.de/online/2006/02/cage Die eingefrorene Zeit], ''[[Die Zeit]]'', January 8, 2006 {{in lang|de}}
* [https://vimeo.com/637619443 ''(JC{639})''] Documentary Film by Sabine Groschup, 2006/20012
* [https://web.archive.org/web/20070820230654/http://www.as-slow-as-possible.com/ Website of the documentary film ''ASAP'' by Scott Smith]
* [https://www.washingtonpost.com/blogs/arts-post/post/worlds-longest-concert-will-last-639-years/2011/11/21/gIQAWrdXiN_blog.html "World's longest concert will last 639 years"] ''The Washington Post''. November 21, 2011.
* [https://daily.redbullmusicacademy.com/2019/04/halberstadt-john-cage-organ-feature ''A Visit to John Cage's 639-Year Organ Composition''] von Aaron Gonsher, [[Red Bull Music Academy]], April 12, 2019
* [https://www.newstalk.com/podcasts/highlights-from-moncrieff/the-longest-song ''The Longest Song''], [[Newstalk]] Radio Dublin, The [[Sean Moncrieff]] Show, September 11, 2020
* [https://www.hs-harz.de/user-mounts/292_m128/HowStuffWorksMeetJohnCageOct27th2020.pdf''Meet John Cage, the Innovative Composer Behind the 639-year-long Consert''], [[HowStuffWorks]], October 27, 2020
* [https://www.youtube.com/watch?v=-2VfJdAZzXg''Cage Conversation with Richard T. Eldridge''],  [[NAMM Show]] Believe in Music Week, January 2021
* [https://www.youtube.com/watch?v=_Lyb0xvEFyY ''How Slow Is Slow?''], FutureStops. A project of the [[Royal Canadian College of Organists]] Podcast Episode 02, September 23, 2021
* [https://www.hs-harz.de/user-mounts/292_m128/RON_John_Cage_Organ_Project___Climate_Change.pdf ''The John Cage Organ Project & the Climate Change''], Interview with Warren Senders, Music 4 Climate Justice at [[2021 United Nations Climate Change Conference]] in Glasgow November 12, 2021
* [https://theworld.org/media/2023-01-04/longest-slowest-organ-music-ever ''The longest, slowest organ music ever''], Interview with Bianca Hillier, [[The World (radio program)]], January 4, 2023
* [https://www.classicfm.com/composers/cage/as-slow-a-possible-aslsp-germany-organ-chord-change/ ''A 639-year-long John Cage organ piece just changed chord, for the first time in two years''] by Kyle Macdonald, [[Classic FM (UK)]], February 6, 2024
* [https://wildflower.work/counter-architectures.html ''Counter-Architectures: ORGAN²/ASLSP, John Cage and Utopia''] by Elijah Beaton, wildflower.work, February 25, 2024
* [https://www.hs-harz.de/user-mounts/292_m128/RON_Listen_to_the_unique_sounds_LTAP_Lecture_2024.pdf ''Listen to the unique sound''], Lecture at the 1st International LTAP Conference in Halberstadt (Germany), August 31, 2024

{{John Cage}}
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[[Category:1987 compositions]]
[[Category:3rd millennium]]
[[Category:Compositions by John Cage]]
[[Category:Compositions for organ]]