Richard Wright · Ummagumma

Sysyphus, Part 4

Sysyphus, Part 4 is in B major at 140.2 beats per minute.

4080120160200

Tempo

140 BPM · Allegromedian of 171 analyses · 128.8–143.7 across the middle eight tenths
Key
B major5 sharps · the key most of the analyses agreed on
Agreement
97%share of analyses that agreed
Analyses
171people who ran the extractor
One beat
428milliseconds, 60,000 ÷ BPM
Tuning
439Hz · -4 cents from A 440
Dynamics
10.99dB the level wanders from its average
Loudness
0.007Essentia's 0–1 scale, not dB
Danceability
0.762Essentia's danceability, 0–3

Source: AcousticBrainz, dump of 2022-06-23 (CC0) · MusicBrainz core data, 2026-09-17 (CC0) · how each number is measured. Measured up to 23.06.2022 — AcousticBrainz stopped collecting in 2022, so nothing released after that date is here.

What the numbers say

171 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 97% — put it in B major, a key signature of 5 sharps. The tempo printed above is the median of the 171 readings; 42% of them land within 2% of it, and the middle eight tenths of them run from 128.8 to 143.7 BPM.

At 140.2 BPM one beat lasts 428 milliseconds, so a sixteenth note is 107 ms and a dotted eighth 321 ms — the delay times for this recording. Counted half as fast it is 70.1 BPM, counted twice as fast 280.4. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 439 Hz, which is 4 cents below concert A at 440 Hz — close enough to standard that a tuner would not argue. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 10.99 dB: that is how far the level wanders from its own average, so a small number means a loud, flat master and a large one means a recording that still breathes. Its average loudness is 0.007 on Essentia's 0-to-1 scale, which is not decibels and is not comparable to a streaming service's number.

10 other recordings here are in B major; the ones listed below are the closest in tempo.

Beats per bar are not in this dataset. AcousticBrainz's analysis reports a tempo, a key and a loudness, and no time signature at all, so this page does not print one — a 4/4 here would be a guess dressed as a measurement.

Keys that fit with B major

Each of these differs from B major by at most one accidental, or shares its tonic. That is the whole of what a mixing wheel encodes; here the relations are named instead of numbered.

Delay times at 140 BPM

Note valueBeatsMillisecondsHertz
Whole note41711.80.58
Half note2855.91.17
Dotted quarter1.5641.91.56
Quarter note (one beat)14282.34
Quarter triplet0.667285.33.51
Dotted eighth0.753213.12
Eighth note0.52144.67
Eighth triplet0.333142.77.01
Dotted sixteenth0.375160.56.23
Sixteenth note0.251079.35
Sixteenth triplet0.16771.314.02
Thirty-second note0.12553.518.69

Half time 70.1 BPM · double time 280.4 BPM. Every row is one beat (428 ms) times the fraction in the second column.

Closest in key and tempo

  1. I Don’t Want to KnowFleetwood MacB major140BPM
  2. Out ta Get MeGuns N’ RosesB major141BPM
  3. DesnudoEnrique IglesiasB major139BPM
  4. Kings HorsesJetB major139BPM
  5. Just Go AwayBlondieB major139BPM
  6. Swallowed in the SeaColdplayB major142BPM
  7. Flora’s SecretEnyaB major142BPM
  8. One of These DaysPink FloydB major137BPM
  9. ExitludeThe KillersB major137BPM
  10. Spiral ArchitectBlack SabbathB major143BPM

Recordings in B major, ordered by how near their tempo is to 140 BPM. A calculation, not a recommendation.

All songs in B majorAll songs at 140 BPMB major at 140–149 BPMRichard Wright

MusicBrainz collapses 1 recording id into this one. Recording id 1d0e05f3-0c8a-4ec0-ac89-843ebb69c2d8.