TempoPeek

Jonas Blue, Liam Payne & Lennon Stella · Birds

Polaroid

Polaroid is in B flat major at 114 beats per minute.

4080120160200

Tempo

114 BPM · Moderatomedian of 200 analyses · 114–114 across the middle eight tenths
Key
B♭ major2 flats · the key most of the analyses agreed on
Agreement
100%share of analyses that agreed
Analyses
200people who ran the extractor
One beat
526.3milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
3.84dB the level wanders from its average
Loudness
0.811Essentia's 0–1 scale, not dB
Danceability
1.146Essentia'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

200 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in B flat major, a key signature of 2 flats. The tempo printed above is the median of the 200 readings; 100% of them land within 2% of it, and they barely differ at all.

At 114 BPM one beat lasts 526.3 milliseconds, so a sixteenth note is 131.6 ms and a dotted eighth 394.7 ms — the delay times for this recording. Counted half as fast it is 57 BPM, counted twice as fast 228. A score would mark that Moderato, 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 3.84 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 0.811 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 114 BPM

Note valueBeatsMillisecondsHertz
Whole note42105.30.48
Half note21052.60.95
Dotted quarter1.5789.51.27
Quarter note (one beat)1526.31.9
Quarter triplet0.667350.92.85
Dotted eighth0.75394.72.53
Eighth note0.5263.23.8
Eighth triplet0.333175.45.7
Dotted sixteenth0.375197.45.07
Sixteenth note0.25131.67.6
Sixteenth triplet0.16787.711.4
Thirty-second note0.12565.815.2

Half time 57 BPM · double time 228 BPM. Every row is one beat (526.3 ms) times the fraction in the second column.

Closest in key and tempo

  1. Emotional RescueThe Rolling StonesB♭ major114BPM
  2. I Think I’m ParanoidGarbageB♭ major114BPM
  3. The Way You Make Me FeelMichael JacksonB♭ major115BPM
  4. All the King’s HorsesAretha FranklinB♭ major113BPM
  5. Fooled Around and Fell in LoveElvin BishopB♭ major113BPM
  6. Ob‐La‐Di, Ob‐La‐DaThe BeatlesB♭ major113BPM
  7. Downtown TrainRod StewartB♭ major115BPM
  8. A+EClean Bandit feat. Kandaka Moore & Nikki CislynB♭ major115BPM
  9. Say It Loud – I’m Black and I’m Proud, Pt. 1James BrownB♭ major115BPM
  10. Purple RainPrince and The RevolutionB♭ major113BPM

Recordings in B flat major, ordered by how near their tempo is to 114 BPM. A calculation, not a recommendation.

All songs in B flat majorAll songs at 114 BPMB♭ major at 110–119 BPM

MusicBrainz collapses 1 recording id into this one. Recording id ece8cfcb-1818-436d-9fe4-02855a6f1590.