Björk · Biophilia
Moon
Moon is in E minor at 165.8 beats per minute.
Tempo
166 BPM · Vivacemedian of 129 analyses · 165.8–165.9 across the middle eight tenths- Key
- E minor1 sharp · the key most of the analyses agreed on
- Agreement
- 100%share of analyses that agreed
- Analyses
- 129people who ran the extractor
- One beat
- 361.9milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 6.5dB the level wanders from its average
- Loudness
- 0.125Essentia's 0–1 scale, not dB
- Danceability
- 0.924Essentia'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
129 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in E minor, a key signature of 1 sharp. The tempo printed above is the median of the 129 readings; 100% of them land within 2% of it, and they barely differ at all.
At 165.8 BPM one beat lasts 361.9 milliseconds, so a sixteenth note is 90.5 ms and a dotted eighth 271.4 ms — the delay times for this recording. Counted half as fast it is 82.9 BPM, counted twice as fast 331.6. A score would mark that Vivace, 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 6.5 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 0.125 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 E 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 E minor
Each of these differs from E 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 166 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1447.5 | 0.69 |
| Half note | 2 | 723.8 | 1.38 |
| Dotted quarter | 1.5 | 542.8 | 1.84 |
| Quarter note (one beat) | 1 | 361.9 | 2.76 |
| Quarter triplet | 0.667 | 241.3 | 4.15 |
| Dotted eighth | 0.75 | 271.4 | 3.68 |
| Eighth note | 0.5 | 180.9 | 5.53 |
| Eighth triplet | 0.333 | 120.6 | 8.29 |
| Dotted sixteenth | 0.375 | 135.7 | 7.37 |
| Sixteenth note | 0.25 | 90.5 | 11.05 |
| Sixteenth triplet | 0.167 | 60.3 | 16.58 |
| Thirty-second note | 0.125 | 45.2 | 22.11 |
Half time 82.9 BPM · double time 331.6 BPM. Every row is one beat (361.9 ms) times the fraction in the second column.
Closest in key and tempo
- Rebel YellBilly IdolE minor166BPM
- I Did It My WayJay‐ZE minor166BPM
- Barrel of a GunDepeche ModeE minor166BPM
- Amor gitanoBeyoncé and Alejandro FernándezE minor166BPM
- White LimoFoo FightersE minor166BPM
- Shock to the SystemBilly IdolE minor167BPM
- Who Makes You FeelDidoE minor167BPM
- AwakenYesE minor165BPM
- Several Species of Small Furry Animals Gathered Together in a Cave and Grooving With a PictRoger WatersE minor165BPM
- WhiteoutTim DaviesE minor165BPM
Recordings in E minor, ordered by how near their tempo is to 166 BPM. A calculation, not a recommendation.
All songs in E minorAll songs at 166 BPME minor at 160–169 BPMBjörk
MusicBrainz collapses 7 recording ids into this one. Recording id ee6a8d32-27b8-4aca-87d8-2a1ed5cb5c97.