TempoPeek

Rihanna · Rated R

Rude Boy

Rude Boy is in E flat minor at 87 beats per minute.

4080120160200

Tempo

87 BPM · Andantemedian of 148 analyses · 87–172.3 across the middle eight tenths
Key
E♭ minor6 flats · the key most of the analyses agreed on
Agreement
85%share of analyses that agreed
Analyses
148people who ran the extractor
One beat
689.7milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
2.71dB the level wanders from its average
Loudness
0.63Essentia's 0–1 scale, not dB
Danceability
1.206Essentia'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

148 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 85% — put it in E flat minor, a key signature of 6 flats. The tempo printed above is the median of the 148 readings; 87% of them land within 2% of it, and the middle eight tenths of them run from 87 to 172.3 BPM.

At 87 BPM one beat lasts 689.7 milliseconds, so a sixteenth note is 172.4 ms and a dotted eighth 517.2 ms — the delay times for this recording. Counted half as fast it is 43.5 BPM, counted twice as fast 174. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 434.2 Hz, which is 23 cents below 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 2.71 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 0.63 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 E flat minor; 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 E♭ minor

Each of these differs from E♭ minor 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 87 BPM

Note valueBeatsMillisecondsHertz
Whole note42758.60.36
Half note21379.30.73
Dotted quarter1.51034.50.97
Quarter note (one beat)1689.71.45
Quarter triplet0.667459.82.18
Dotted eighth0.75517.21.93
Eighth note0.5344.82.9
Eighth triplet0.333229.94.35
Dotted sixteenth0.375258.63.87
Sixteenth note0.25172.45.8
Sixteenth triplet0.167114.98.7
Thirty-second note0.12586.211.6

Half time 43.5 BPM · double time 174 BPM. Every row is one beat (689.7 ms) times the fraction in the second column.

Closest in key and tempo

  1. Love Me TomorrowChicagoE♭ minor87BPM
  2. Empire State of MindJay‐Z + Alicia KeysE♭ minor87BPM
  3. Diamond Is ForeverJay‐ZE♭ minor86BPM
  4. I Can’t Stand the RainTina TurnerE♭ minor88BPM
  5. My Favorite ThingsJohn ColtraneE♭ minor89BPM
  6. Slow CheetahRed Hot Chili PeppersE♭ minor89BPM
  7. Heaven and HellBlack SabbathE♭ minor90BPM
  8. Dear Mama2PacE♭ minor84BPM
  9. Down With the SicknessDisturbedE♭ minor90BPM
  10. Remember Me?Eminem featuring RBX and Sticky FingazE♭ minor90BPM

Recordings in E flat minor, ordered by how near their tempo is to 87 BPM. A calculation, not a recommendation.

All songs in E flat minorAll songs at 87 BPME♭ minor at 80–89 BPMRihanna

MusicBrainz collapses 21 recording ids into this one. Recording id 3d3ef666-880f-4dd8-b17f-4e58a7b35c4c.