TempoPeek

Mary J. Blige · The London Sessions

Doubt

Doubt is in F major at 153.9 beats per minute.

4080120160200

Tempo

154 BPM · Allegromedian of 146 analyses · 153.7–153.9 across the middle eight tenths
Key
F major1 flat · the key most of the analyses agreed on
Agreement
100%share of analyses that agreed
Analyses
146people who ran the extractor
One beat
389.9milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
4.64dB the level wanders from its average
Loudness
0.813Essentia's 0–1 scale, not dB
Danceability
1.18Essentia'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

146 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in F major, a key signature of 1 flat. The tempo printed above is the median of the 146 readings; 100% of them land within 2% of it, and they barely differ at all.

At 153.9 BPM one beat lasts 389.9 milliseconds, so a sixteenth note is 97.5 ms and a dotted eighth 292.4 ms — the delay times for this recording. Counted half as fast it is 77 BPM, counted twice as fast 307.8. A score would mark that Allegro, 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 4.64 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 0.813 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 F 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 F major

Each of these differs from F 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 154 BPM

Note valueBeatsMillisecondsHertz
Whole note41559.50.64
Half note2779.71.28
Dotted quarter1.5584.81.71
Quarter note (one beat)1389.92.57
Quarter triplet0.667259.93.85
Dotted eighth0.75292.43.42
Eighth note0.5194.95.13
Eighth triplet0.3331307.7
Dotted sixteenth0.375146.26.84
Sixteenth note0.2597.510.26
Sixteenth triplet0.1676515.39
Thirty-second note0.12548.720.52

Half time 77 BPM · double time 307.8 BPM. Every row is one beat (389.9 ms) times the fraction in the second column.

Closest in key and tempo

  1. Take It or Leave ItThe StrokesF major154BPM
  2. No SurprisesRadioheadF major154BPM
  3. My Kind of TownFrank Sinatra with Nelson Riddle and His OrchestraF major153BPM
  4. I Will Follow You Into the DarkDeath Cab for CutieF major153BPM
  5. No SurrenderBruce SpringsteenF major153BPM
  6. Cat’s in the CradleHarry ChapinF major155BPM
  7. Play DeadBjörk & David ArnoldF major155BPM
  8. One and OnlyAdeleF major155BPM
  9. A Man Needs a MaidNeil YoungF major155BPM
  10. Saturday Night’s Alright for FightingElton JohnF major153BPM

Recordings in F major, ordered by how near their tempo is to 154 BPM. A calculation, not a recommendation.

All songs in F majorAll songs at 154 BPMF major at 150–159 BPM

MusicBrainz collapses 1 recording id into this one. Recording id c34d4496-5f4a-4541-bd56-19a07b95215b.