Beyoncé feat. Sean Paul · Dangerously in Love
Baby Boy
Baby Boy is in F minor at 91.1 beats per minute.
Tempo
91 BPM · Andantemedian of 235 analyses · 91.1–91.2 across the middle eight tenths- Key
- F minor4 flats · the key most of the analyses agreed on
- Agreement
- 93%share of analyses that agreed
- Analyses
- 235people who ran the extractor
- One beat
- 658.6milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 4.24dB the level wanders from its average
- Loudness
- 0.573Essentia's 0–1 scale, not dB
- Danceability
- 1.339Essentia'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
235 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 93% — put it in F minor, a key signature of 4 flats. The tempo printed above is the median of the 235 readings; 100% of them land within 2% of it, and they barely differ at all.
At 91.1 BPM one beat lasts 658.6 milliseconds, so a sixteenth note is 164.7 ms and a dotted eighth 494 ms — the delay times for this recording. Counted half as fast it is 45.6 BPM, counted twice as fast 182.2. 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 4.24 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 0.573 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 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 F minor
Each of these differs from F 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 91 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 2634.5 | 0.38 |
| Half note | 2 | 1317.2 | 0.76 |
| Dotted quarter | 1.5 | 987.9 | 1.01 |
| Quarter note (one beat) | 1 | 658.6 | 1.52 |
| Quarter triplet | 0.667 | 439.1 | 2.28 |
| Dotted eighth | 0.75 | 494 | 2.02 |
| Eighth note | 0.5 | 329.3 | 3.04 |
| Eighth triplet | 0.333 | 219.5 | 4.56 |
| Dotted sixteenth | 0.375 | 247 | 4.05 |
| Sixteenth note | 0.25 | 164.7 | 6.07 |
| Sixteenth triplet | 0.167 | 109.8 | 9.11 |
| Thirty-second note | 0.125 | 82.3 | 12.15 |
Half time 45.6 BPM · double time 182.2 BPM. Every row is one beat (658.6 ms) times the fraction in the second column.
Closest in key and tempo
- Pleasure Is All MineBjörkF minor92BPM
- Out of the WoodsTaylor SwiftF minor92BPM
- In My Hood50 CentF minor90BPM
- To Be a LoverBilly IdolF minor92BPM
- CriminalFiona AppleF minor90BPM
- Car ThiefBeastie BoysF minor90BPM
- One More NightMaroon 5F minor93BPM
- Life’s on the Line50 CentF minor94BPM
- Trapped2PacF minor88BPM
- I Don’t Wanna Lose YouTina TurnerF minor94BPM
Recordings in F minor, ordered by how near their tempo is to 91 BPM. A calculation, not a recommendation.
All songs in F minorAll songs at 91 BPMF minor at 90–99 BPM
MusicBrainz collapses 7 recording ids into this one. Recording id 1a949e29-88cd-482b-8958-4ad3d7e2b956.