TempoPeek

Prince and The Revolution · When Doves Cry

Purple Rain

Purple Rain is in B flat major at 113 beats per minute.

4080120160200

Tempo

113 BPM · Moderatomedian of 329 analyses · 112.8–114 across the middle eight tenths
Key
B♭ major2 flats · the key most of the analyses agreed on
Agreement
99%share of analyses that agreed
Analyses
329people who ran the extractor
One beat
531milliseconds, 60,000 ÷ BPM
Tuning
441.5Hz · +6 cents from A 440
Dynamics
4.03dB the level wanders from its average
Loudness
0.595Essentia's 0–1 scale, not dB
Danceability
1.059Essentia'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

329 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 99% — put it in B flat major, a key signature of 2 flats. The tempo printed above is the median of the 329 readings; 99% of them land within 2% of it, and the middle eight tenths of them run from 112.8 to 114 BPM.

At 113 BPM one beat lasts 531 milliseconds, so a sixteenth note is 132.7 ms and a dotted eighth 398.2 ms — the delay times for this recording. Counted half as fast it is 56.5 BPM, counted twice as fast 226. A score would mark that Moderato, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441.5 Hz, which is 6 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 4.03 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 0.595 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 113 BPM

Note valueBeatsMillisecondsHertz
Whole note42123.90.47
Half note21061.90.94
Dotted quarter1.5796.51.26
Quarter note (one beat)15311.88
Quarter triplet0.6673542.83
Dotted eighth0.75398.22.51
Eighth note0.5265.53.77
Eighth triplet0.3331775.65
Dotted sixteenth0.375199.15.02
Sixteenth note0.25132.77.53
Sixteenth triplet0.16788.511.3
Thirty-second note0.12566.415.07

Half time 56.5 BPM · double time 226 BPM. Every row is one beat (531 ms) times the fraction in the second column.

Closest in key and tempo

  1. We’ve Got It Goin’ On (radio edit)Backstreet BoysB♭ major113BPM
  2. No PromisesCheat Codes feat. Demi LovatoB♭ major113BPM
  3. DangerousMichael JacksonB♭ major113BPM
  4. Ob‐La‐Di, Ob‐La‐DaThe BeatlesB♭ major113BPM
  5. Fooled Around and Fell in LoveElvin BishopB♭ major113BPM
  6. All the King’s HorsesAretha FranklinB♭ major113BPM
  7. 20th Century Fox FanfareAlfred NewmanB♭ major112BPM
  8. Emotional RescueThe Rolling StonesB♭ major114BPM
  9. I Think I’m ParanoidGarbageB♭ major114BPM
  10. T.V.blink‐182B♭ major112BPM

Recordings in B flat major, ordered by how near their tempo is to 113 BPM. A calculation, not a recommendation.

All songs in B flat majorAll songs at 113 BPMB♭ major at 110–119 BPMPrince and The Revolution

MusicBrainz collapses 22 recording ids into this one. Recording id 85a752f8-cbad-42e6-8828-bd81318e3c7d.