TempoPeek

Supertramp · Crime of the Century

Rudy

Rudy is in B flat major at 139.5 beats per minute.

4080120160200

Tempo

140 BPM · Allegromedian of 218 analyses · 139.3–139.7 across the middle eight tenths
Key
B♭ major2 flats · the key most of the analyses agreed on
Agreement
73%share of analyses that agreed
Analyses
218people who ran the extractor
One beat
430.1milliseconds, 60,000 ÷ BPM
Tuning
441.3Hz · +5 cents from A 440
Dynamics
8.31dB the level wanders from its average
Loudness
0.189Essentia's 0–1 scale, not dB
Danceability
0.98Essentia'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

218 independent analyses of this recording were submitted to AcousticBrainz. A bare majority of them — 73% — put it in B flat major, a key signature of 2 flats. The tempo printed above is the median of the 218 readings; 93% of them land within 2% of it, and they barely differ at all.

At 139.5 BPM one beat lasts 430.1 milliseconds, so a sixteenth note is 107.5 ms and a dotted eighth 322.6 ms — the delay times for this recording. Counted half as fast it is 69.8 BPM, counted twice as fast 279. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441.3 Hz, which is 5 cents above concert A at 440 Hz — the sort of drift a tape machine or a slightly different mastering leaves behind. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 8.31 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 0.189 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 flat 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 note41720.40.58
Half note2860.21.16
Dotted quarter1.5645.21.55
Quarter note (one beat)1430.12.32
Quarter triplet0.667286.73.49
Dotted eighth0.75322.63.1
Eighth note0.5215.14.65
Eighth triplet0.333143.46.98
Dotted sixteenth0.375161.36.2
Sixteenth note0.25107.59.3
Sixteenth triplet0.16771.713.95
Thirty-second note0.12553.818.6

Half time 69.8 BPM · double time 279 BPM. Every row is one beat (430.1 ms) times the fraction in the second column.

Closest in key and tempo

  1. Island GirlElton JohnB♭ major140BPM
  2. As Long as You Love MeJustin Bieber feat. Big SeanB♭ major140BPM
  3. Still on My MindDidoB♭ major140BPM
  4. Break It (Go)Danny BrownB♭ major140BPM
  5. ApplauseLady GagaB♭ major140BPM
  6. TortureDanny BrownB♭ major140BPM
  7. Raining in BaltimoreCounting CrowsB♭ major140BPM
  8. Hey, That’s No Way to Say GoodbyeLeonard CohenB♭ major140BPM
  9. Charlie BrownColdplayB♭ major138BPM
  10. The Son of FlynnDaft PunkB♭ major141BPM

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

All songs in B flat majorAll songs at 140 BPMB♭ major at 130–139 BPMSupertramp

MusicBrainz collapses 31 recording ids into this one. Recording id 9eef3496-cd01-4a6a-bca8-25d51038ff9e.