Rage Against the Machine · The Battle of Los Angeles
Sleep Now in the Fire
Sleep Now in the Fire is in D minor at 126.7 beats per minute.
Tempo
127 BPM · Allegromedian of 137 analyses · 126.7–126.8 across the middle eight tenths- Key
- D minor1 flat · the key most of the analyses agreed on
- Agreement
- 93%share of analyses that agreed
- Analyses
- 137people who ran the extractor
- One beat
- 473.6milliseconds, 60,000 ÷ BPM
- Tuning
- 438.2Hz · -7 cents from A 440
- Dynamics
- 2.66dB the level wanders from its average
- Loudness
- 0.956Essentia's 0–1 scale, not dB
- Danceability
- 1.133Essentia'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
137 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 93% — put it in D minor, a key signature of 1 flat. The tempo printed above is the median of the 137 readings; 97% of them land within 2% of it, and they barely differ at all.
At 126.7 BPM one beat lasts 473.6 milliseconds, so a sixteenth note is 118.4 ms and a dotted eighth 355.2 ms — the delay times for this recording. Counted half as fast it is 63.4 BPM, counted twice as fast 253.4. A score would mark that Allegro, by the ranges this site uses.
The analyses put the reference pitch of the recording at 438.2 Hz, which is 7 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 2.66 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 0.956 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 D 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 D minor
Each of these differs from D 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 127 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1894.2 | 0.53 |
| Half note | 2 | 947.1 | 1.06 |
| Dotted quarter | 1.5 | 710.3 | 1.41 |
| Quarter note (one beat) | 1 | 473.6 | 2.11 |
| Quarter triplet | 0.667 | 315.7 | 3.17 |
| Dotted eighth | 0.75 | 355.2 | 2.82 |
| Eighth note | 0.5 | 236.8 | 4.22 |
| Eighth triplet | 0.333 | 157.9 | 6.34 |
| Dotted sixteenth | 0.375 | 177.6 | 5.63 |
| Sixteenth note | 0.25 | 118.4 | 8.45 |
| Sixteenth triplet | 0.167 | 78.9 | 12.67 |
| Thirty-second note | 0.125 | 59.2 | 16.89 |
Half time 63.4 BPM · double time 253.4 BPM. Every row is one beat (473.6 ms) times the fraction in the second column.
Closest in key and tempo
- Breaking the RulesAC/DCD minor127BPM
- Heroes (We Could Be)Alesso feat. Tove LoD minor126BPM
- ExecuteApparatD minor126BPM
- Street PlayerChicagoD minor126BPM
- Circle in the SandBelinda CarlisleD minor126BPM
- You Make It RoughChromeoD minor126BPM
- ReptileNine Inch NailsD minor128BPM
- An Echo, a StainBjörkD minor128BPM
- AssassinMuseD minor126BPM
- UprisingMuseD minor128BPM
Recordings in D minor, ordered by how near their tempo is to 127 BPM. A calculation, not a recommendation.
All songs in D minorAll songs at 127 BPMD minor at 120–129 BPMRage Against the Machine
MusicBrainz collapses 33 recording ids into this one. Recording id 1d9cea43-ce62-4f52-b3e6-703d2956dfd4.