Björk · Biophilia
Hollow
Hollow is in F major at 132.3 beats per minute.
Tempo
132 BPM · Allegromedian of 138 analyses · 132.3–132.4 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
- 138people who ran the extractor
- One beat
- 453.5milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 7.24dB the level wanders from its average
- Loudness
- 0.362Essentia's 0–1 scale, not dB
- Danceability
- 1.073Essentia'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
138 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 138 readings; 100% of them land within 2% of it, and they barely differ at all.
At 132.3 BPM one beat lasts 453.5 milliseconds, so a sixteenth note is 113.4 ms and a dotted eighth 340.1 ms — the delay times for this recording. Counted half as fast it is 66.2 BPM, counted twice as fast 264.6. 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 7.24 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 0.362 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 132 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1814.1 | 0.55 |
| Half note | 2 | 907 | 1.1 |
| Dotted quarter | 1.5 | 680.3 | 1.47 |
| Quarter note (one beat) | 1 | 453.5 | 2.21 |
| Quarter triplet | 0.667 | 302.3 | 3.31 |
| Dotted eighth | 0.75 | 340.1 | 2.94 |
| Eighth note | 0.5 | 226.8 | 4.41 |
| Eighth triplet | 0.333 | 151.2 | 6.62 |
| Dotted sixteenth | 0.375 | 170.1 | 5.88 |
| Sixteenth note | 0.25 | 113.4 | 8.82 |
| Sixteenth triplet | 0.167 | 75.6 | 13.23 |
| Thirty-second note | 0.125 | 56.7 | 17.64 |
Half time 66.2 BPM · double time 264.6 BPM. Every row is one beat (453.5 ms) times the fraction in the second column.
Closest in key and tempo
- UsCéline DionF major132BPM
- Spirit in the DarkAretha FranklinF major132BPM
- The Thin IcePink FloydF major132BPM
- By My SideBen HarperF major133BPM
- Time Is on My SideThe Rolling StonesF major132BPM
- Stuck on YouLionel RichieF major132BPM
- ForgottenAvril LavigneF major132BPM
- Dissolved GirlMassive AttackF major132BPM
- Je lui diraiCéline DionF major133BPM
- Out of ControlThe Chemical BrothersF major132BPM
Recordings in F major, ordered by how near their tempo is to 132 BPM. A calculation, not a recommendation.
All songs in F majorAll songs at 132 BPMF major at 130–139 BPMBjörk
MusicBrainz collapses 6 recording ids into this one. Recording id 89ea2b40-96d9-4e08-91df-14c2a95862fb.