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This URL links to hour 769,858 : minute 51 of Shepard's Pi.


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"Shepard's Pi" is one continuous song that lasts for 999,999,999 hours, or about 114 years.

Canton Becker

Canton Becker composed these sounds and an algorithm that orchestrates these sounds using the first one billion digits of pi (π). Each digit (3.1415...) determines four seconds of music, supplying the "turn signals" used to determine every musical expression.

Because the numbers in pi never repeat, each of the million hours of "Shepard's Pi" music are in fact unique. By fast forwarding to some distant moment in the song, you are virtually guaranteed to find yourself listening to something that nobody else – including the composer – has ever heard before.

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140635583366958709707647685393049091457781243596791362297326775359389373005435490836533282553649923476429052023393060373042137627963086237669573425383980534627760432577840741920716409658815905790566287293304225722241245372250477521944312026637370181010158873416602439756991298376189704747879869301606059844031392831351434656506688071020138140928821037707037384218207594504259878572600323798135242640710830748180435047511222874627246598612198807853013354415609695970869898072749552986890827106174287155668411648013145211726217094296392935533900671211787166683916790561769840449453965682370176317057868094458174645797740577539935597224028767079427511231900601556810046511480608859898181338586311660164384921340615110165366660726421671448324654977572640907431864125112676401312737158523982536281674983479908634760527784537728133970816692382073973785509251418207077282126982927063997166684315256776902386045826956856011456870347119295323671338607707640893085921058800983837532023870510868836964868132170829461958867474289452853750931431013089175417151737717106193398520696917478613064422214950465387796958204953755720520122071815045390721623118870493383

*** DEBUG SCORE ***


Our slice is 10 minutes.
@ @ -2:-4    Δ -64s    769,858:50:19   @ -64.0 π=692872955    890: found even ASCENDING SEQUENCE890, requesting DRONE 
@ @ -2:-4    Δ 0s      769,858:50:19   @ -64.0 π=692872955    SEQ: setting sticky loop counter
@ @ -9:-20   Δ -435s   769,858:43:03   @ -500.0 π=692872846   987: found odd DESCENDING SEQUENCE987, requesting DRONE 
@ @ -9:-20   Δ 0s      769,858:43:03   @ -500.0 π=692872846   SEQ: setting sticky loop counter
@ @ -11:-12  Δ -111s   769,858:41:11   @ -612.0 π=692872818   210: found odd DESCENDING SEQUENCE210, requesting DRONE 
@ @ -11:-12  Δ 0s      769,858:41:11   @ -612.0 π=692872818   SEQ: setting sticky loop counter
@ @ -23:-28  Δ -736s   769,858:28:55   @ -1348.0 π=692872634  432: found odd DESCENDING SEQUENCE432, requesting DRONE 
@ @ -23:-28  Δ 0s      769,858:28:55   @ -1348.0 π=692872634  SEQ: setting sticky loop counter
@ @ -27:-48  Δ -260s   769,858:24:35   @ -1608.0 π=692872569  234: found odd ASCENDING SEQUENCE234, requesting DRONE 
@ @ -27:-48  Δ 0s      769,858:24:35   @ -1608.0 π=692872569  SEQ: setting sticky loop counter
@ @ -29:-20  Δ -92s    769,858:23:03   @ -1700.0 π=692872546  543: found even DESCENDING SEQUENCE543, requesting DRONE 
@ @ -29:-20  Δ 0s      769,858:23:03   @ -1700.0 π=692872546  SEQ: setting sticky loop counter
@ @ 00:00    Δ 1700s   769,858:51:24   @ 0.0 π=692872971      ---: *** (PRE-ROLL) Got bored waiting for sampler to change, setting sampler velocity to 0.7 and sampler octave to 5 (period=1 sticky=0 stickywait=0) *** 
@ @ 00:00    Δ 0s      769,858:51:24   @ 0.0 π=692872971      44 : PREROLL Found double 4, identified position 454 for INITIAL LOOP 2
@ @ 00:00    Δ 0s      769,858:51:24   @ 0.0 π=692872971      44 : Sequencing LOOP loop-1/4 | duration 32.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(pingPongLoop) 
@ @ 00:00    Δ 0s      769,858:51:24   @ 0.0 π=692872971      55 : PREROLL Found double 5, identified position 479 for INITIAL LOOP 1
@ @ 00:00    Δ 0s      769,858:51:24   @ 0.0 π=692872971      55 : Sequencing LOOP loop-3/5 | duration 32.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(pingPongLoop) 
@ @ 00:00    Δ 0s      769,858:51:24   @ 0.0 π=692872971      890: Sequencing DRONE drone-1/9 | duration 560.00 | loop false | volume -8.2 | fade 16 | reverse false | connect(autoFilterDrone) Future is 4 and Past is 4 
@ @ 00:04    Δ 4s      769,858:51:28   @ 4.0 π=692872972      55 : Sequencing LOOP loop-2/5 | duration 82.00 | loop true | volume -12.5 | fade 16 | reverse false | sticky 0 | connect(autoFilterPlusPingPongLoop) 
@ @ 00:12    Δ 8s      769,858:51:36   @ 12.0 π=692872974     66 : Sequencing LOOP loop-2/6 | duration 72.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(pingPongLoop) 
@ @ 00:28    Δ 16s     769,858:51:52   @ 28.0 π=692872978     11 : Sequencing LOOP loop-2/1 | duration 70.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(pingPongLoop) 
@ @ 01:16    Δ 47s     769,858:52:40   @ 76.0 π=692872990     ---: *** Got bored waiting for sampler to change, setting sampler velocity to 0.4 and sampler octave to 1 (period=1 sticky=0 stickywait=0) *** 
@ @ 01:16    Δ 0s      769,858:52:40   @ 76.0 π=692872990     11 : SILENCED LOOP loop-2/1 because futureNumber 9 appears in '09'
@ @ 02:32    Δ 76s     769,858:53:56   @ 152.0 π=692873009    55 : Sequencing LOOP loop-1/5 | duration 62.00 | loop true | volume -12.5 | fade 16 | reverse true | sticky 0 | connect(pingPongLoop) 
@ @ 02:40    Δ 8s      769,858:54:04   @ 160.0 π=692873011    33 : Sequencing LOOP loop-2/3 | duration 76.00 | loop true | volume -16 | fade 16 | reverse false | sticky 0 | connect(autoFilterLoop) 
@ @ 02:52    Δ 12s     769,858:54:16   @ 172.0 π=692873014    00 : Sequencing LOOP loop-2/0 | duration 66.00 | loop true | volume -15 | fade 16 | reverse true | sticky 0 | connect(autoFilterLoop) 
@ @ 03:16    Δ 24s     769,858:54:40   @ 196.0 π=692873020    11 : Sequencing LOOP loop-1/1 | duration 90.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(pingPongLoop) 
@ @ 03:24    Δ 7s      769,858:54:48   @ 204.0 π=692873022    ---: *** Got bored waiting for sampler to change, setting sampler velocity to 0.7 and sampler octave to 5 (period=1 sticky=0 stickywait=0) *** 
@ @ 03:44    Δ 20s     769,858:55:08   @ 224.0 π=692873027    66 : Sequencing LOOP loop-2/6 | duration 86.00 | loop true | volume -12.5 | fade 16 | reverse true | sticky 0 | connect(pingPongLoop) 
@ @ 03:44    Δ 0s      769,858:55:08   @ 224.0 π=692873027    666: *** Found triple 6, setting sampler velocity to 0.4 and sampler octave to 1 (period=1 sticky=0 stickywait=0) *** 
@ @ 05:00    Δ 76s     769,858:56:24   @ 300.0 π=692873046    44 : Sequencing LOOP loop-1/4 | duration 92.00 | loop true | volume -13.5 | fade 16 | reverse false | sticky 0 | connect(pingPongLoop) 
@ @ 05:52    Δ 51s     769,858:57:16   @ 352.0 π=692873059    ---: *** Got bored waiting for sampler to change, setting sampler velocity to 0.22 and sampler octave to 7 (period=1 sticky=0 stickywait=0) *** 
@ @ 06:56    Δ 64s     769,858:58:20   @ 416.0 π=692873075    44 : Sequencing LOOP loop-1/4 | duration 82.00 | loop true | volume -15.5 | fade 16 | reverse true | sticky 0 | connect(outputMusic) 
@ @ 07:44    Δ 48s     769,858:59:08   @ 464.0 π=692873087    77 : Sequencing LOOP loop-2/7 | duration 78.00 | loop true | volume -12 | fade 16 | reverse true | sticky 0 | connect(outputMusic) 
@ @ 08:00    Δ 16s     769,858:59:24   @ 480.0 π=692873091    ---: *** Got bored waiting for sampler to change, setting sampler velocity to 0.15 and sampler octave to 3 (period=1 sticky=0 stickywait=0) *** 
@ @ 08:04    Δ 3s      769,858:59:28   @ 484.0 π=692873092    77 : Sequencing LOOP loop-2/7 | duration 90.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(pingPongLoop) 
@ @ 08:20    Δ 16s     769,858:59:44   @ 500.0 π=692873096    99 : Sequencing LOOP loop-1/9 | duration 90.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(outputMusic) 
@ @ 08:32    Δ 12s     769,858:59:56   @ 512.0 π=692873099    55 : Sequencing LOOP loop-1/5 | duration 80.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(autoFilterLoop) 
@ @ 08:48    Δ 16s     769,859:00:12   @ 528.0 π=692873103    22 : Sequencing LOOP loop-1/2 | duration 74.00 | loop true | volume -12 | fade 16 | reverse false | sticky 0 | connect(outputMusic) 
@ @ 09:04    Δ 15s     769,859:00:28   @ 544.0 π=692873107    876: found even DESCENDING SEQUENCE876, requesting DRONE (LIVE)
@ @ 09:04    Δ 0s      769,859:00:28   @ 544.0 π=692873107    SEQ: setting sticky loop counter
@ @ 09:08    Δ 3s      769,859:00:32   @ 548.0 π=692873108    876: Sequencing DRONE drone-2/7 | duration 64.00 | loop true | volume -7 | fade 16 | reverse true | connect(outputMusic) Future is 6 and Past is 1 
@ @ 09:52    Δ 44s     769,859:01:16   @ 592.0 π=692873119    11 : SILENCED LOOP loop-1/1 because futureNumber 5 appears in '5'
@ @ 09:52    Δ 0s      769,859:01:16   @ 592.0 π=692873119    123: found even ASCENDING SEQUENCE123, requesting DRONE (LIVE)
@ @ 09:52    Δ 0s      769,859:01:16   @ 592.0 π=692873119    SEQ: setting sticky loop counter
@ @ 09:56    Δ 3s      769,859:01:20   @ 596.0 π=692873120    123: Sequencing DRONE drone-1/2 | duration 384.00 | loop true | volume -7 | fade 16 | reverse false | connect(autoFilterPlusPingPongDrone) Future is 1 and Past is 5 
@ @ 15:56    Δ 359s    769,859:07:20   @ 956.0 π=692873210    654: found odd DESCENDING SEQUENCE654, requesting DRONE 
@ @ 15:56    Δ 0s      769,859:07:20   @ 956.0 π=692873210    SEQ: setting sticky loop counter
@ @ 26:00    Δ 603s    769,859:17:24   @ 1560.0 π=692873361   567: found odd ASCENDING SEQUENCE567, requesting DRONE 
@ @ 26:00    Δ 0s      769,859:17:24   @ 1560.0 π=692873361   SEQ: setting sticky loop counter
@ @ 27:44    Δ 103s    769,859:19:08   @ 1664.0 π=692873387   456: found even ASCENDING SEQUENCE456, requesting DRONE 
@ @ 27:44    Δ 0s      769,859:19:08   @ 1664.0 π=692873387   SEQ: setting sticky loop counter
@ @ 30:24    Δ 159s    769,859:21:48   @ 1824.0 π=692873427   210: found odd DESCENDING SEQUENCE210, requesting DRONE 
@ @ 30:24    Δ 0s      769,859:21:48   @ 1824.0 π=692873427   SEQ: setting sticky loop counter
@ @ 30:52    Δ 27s     769,859:22:16   @ 1852.0 π=692873434   098: found even DESCENDING SEQUENCE098, requesting DRONE 
@ @ 30:52    Δ 0s      769,859:22:16   @ 1852.0 π=692873434   SEQ: setting sticky loop counter
@ @ 33:00    Δ 127s    769,859:24:24   @ 1980.0 π=692873466   321: found even DESCENDING SEQUENCE321, requesting DRONE 
@ @ 33:00    Δ 0s      769,859:24:24   @ 1980.0 π=692873466   SEQ: setting sticky loop counter
@ @ 41:04    Δ 483s    769,859:32:28   @ 2464.0 π=692873587   012: found odd ASCENDING SEQUENCE012, requesting DRONE 
@ @ 41:04    Δ 0s      769,859:32:28   @ 2464.0 π=692873587   SEQ: setting sticky loop counter

*** Statistics ***
drone-1/2	1
drone-1/9	1
drone-2/7	1
loop-1/1	1
loop-1/2	1
loop-1/4	3
loop-1/5	2
loop-1/9	1
loop-2/0	1
loop-2/1	1
loop-2/3	1
loop-2/5	1
loop-2/6	2
loop-2/7	2
loop-3/5	1
sampler 1 A1 	10
sampler 1 C#1 	8
sampler 1 C1 	5
sampler 1 D#1 	7
sampler 1 D1 	6
sampler 1 E1 	5
sampler 1 F#1 	10
sampler 1 F1 	5
sampler 1 G#1 	3
sampler 1 G1 	5
sampler 3 A3 	4
sampler 3 C#3 	2
sampler 3 C3 	2
sampler 3 D#3 	3
sampler 3 D3 	5
sampler 3 E3 	2
sampler 3 F#3 	1
sampler 3 F3 	5
sampler 3 G#3 	1
sampler 3 G3 	7
sampler 5 C#5 	5
sampler 5 C5 	1
sampler 5 D#5 	1
sampler 5 D5 	1
sampler 5 E5 	3
sampler 5 F#5 	4
sampler 5 F5 	3
sampler 5 G#5 	3
sampler 5 G5 	2
sampler 7 A7 	2
sampler 7 C#7 	3
sampler 7 C7 	4
sampler 7 D#7 	1
sampler 7 E7 	5
sampler 7 F#7 	3
sampler 7 F7 	3
sampler 7 G#7 	3
sampler 7 G7 	8