Tool · Lateralus
Reflection
Reflection is in E minor at 90.5 beats per minute.
Tempo
91 BPM · Andantemedian of 127 analyses · 90.4–90.5 across the middle eight tenths- Key
- E minor1 sharp · the key most of the analyses agreed on
- Agreement
- 91%share of analyses that agreed
- Analyses
- 127people who ran the extractor
- One beat
- 663milliseconds, 60,000 ÷ BPM
- Tuning
- 439Hz · -4 cents from A 440
- Dynamics
- 3.91dB the level wanders from its average
- Loudness
- 0.843Essentia's 0–1 scale, not dB
- Danceability
- 1.303Essentia'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
127 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 91% — put it in E minor, a key signature of 1 sharp. The tempo printed above is the median of the 127 readings; 100% of them land within 2% of it, and they barely differ at all.
At 90.5 BPM one beat lasts 663 milliseconds, so a sixteenth note is 165.7 ms and a dotted eighth 497.2 ms — the delay times for this recording. Counted half as fast it is 45.3 BPM, counted twice as fast 181. A score would mark that Andante, by the ranges this site uses.
The analyses put the reference pitch of the recording at 439 Hz, which is 4 cents below concert A at 440 Hz — close enough to standard that a tuner would not argue. That is a fact about this transfer of the music, not about how it was played.
The dynamic complexity of the recording measures 3.91 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 0.843 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 91 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 2651.9 | 0.38 |
| Half note | 2 | 1326 | 0.75 |
| Dotted quarter | 1.5 | 994.5 | 1.01 |
| Quarter note (one beat) | 1 | 663 | 1.51 |
| Quarter triplet | 0.667 | 442 | 2.26 |
| Dotted eighth | 0.75 | 497.2 | 2.01 |
| Eighth note | 0.5 | 331.5 | 3.02 |
| Eighth triplet | 0.333 | 221 | 4.53 |
| Dotted sixteenth | 0.375 | 248.6 | 4.02 |
| Sixteenth note | 0.25 | 165.7 | 6.03 |
| Sixteenth triplet | 0.167 | 110.5 | 9.05 |
| Thirty-second note | 0.125 | 82.9 | 12.07 |
Half time 45.3 BPM · double time 181 BPM. Every row is one beat (663 ms) times the fraction in the second column.
The same title by somebody else
Matched on the title alone, so this list can hold a different song that happens to share a name. Nothing here claims one is a cover of the other.
Closest in key and tempo
- Eyes on MeCéline DionE minor90BPM
- Still Don’t Give a FuckEminemE minor90BPM
- The DistanceCAKEE minor92BPM
- DangerousDavid Guetta feat. Sam MartinE minor92BPM
- The StrangerBilly JoelE minor92BPM
- Give ’Em Hell, KidMy Chemical RomanceE minor92BPM
- Big Ego’sDr. Dre featuring HittmanE minor89BPM
- Dos gardeniasBuena Vista Social ClubE minor92BPM
- Every Planet We Reach Is DeadGorillazE minor88BPM
- Cedarwood RoadU2E minor88BPM
Recordings in E minor, ordered by how near their tempo is to 91 BPM. A calculation, not a recommendation.
All songs in E minorAll songs at 91 BPME minor at 90–99 BPMTool
MusicBrainz collapses 21 recording ids into this one. Recording id 4644157d-321c-49d7-80af-be074724816a.