Daft Punk · Homework
Revolution 909
Revolution 909 is in E minor at 126.4 beats per minute.
Tempo
126 BPM · Allegromedian of 349 analyses · 126.4–126.5 across the middle eight tenths- Key
- E minor1 sharp · the key most of the analyses agreed on
- Agreement
- 90%share of analyses that agreed
- Analyses
- 349people who ran the extractor
- One beat
- 474.7milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 3.6dB the level wanders from its average
- Loudness
- 0.97Essentia's 0–1 scale, not dB
- Danceability
- 1.689Essentia'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
349 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 90% — put it in E minor, a key signature of 1 sharp. The tempo printed above is the median of the 349 readings; 100% of them land within 2% of it, and they barely differ at all.
At 126.4 BPM one beat lasts 474.7 milliseconds, so a sixteenth note is 118.7 ms and a dotted eighth 356 ms — the delay times for this recording. Counted half as fast it is 63.2 BPM, counted twice as fast 252.8. 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 3.6 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 0.97 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 126 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1898.7 | 0.53 |
| Half note | 2 | 949.4 | 1.05 |
| Dotted quarter | 1.5 | 712 | 1.4 |
| Quarter note (one beat) | 1 | 474.7 | 2.11 |
| Quarter triplet | 0.667 | 316.5 | 3.16 |
| Dotted eighth | 0.75 | 356 | 2.81 |
| Eighth note | 0.5 | 237.3 | 4.21 |
| Eighth triplet | 0.333 | 158.2 | 6.32 |
| Dotted sixteenth | 0.375 | 178 | 5.62 |
| Sixteenth note | 0.25 | 118.7 | 8.43 |
| Sixteenth triplet | 0.167 | 79.1 | 12.64 |
| Thirty-second note | 0.125 | 59.3 | 16.85 |
Half time 63.2 BPM · double time 252.8 BPM. Every row is one beat (474.7 ms) times the fraction in the second column.
Closest in key and tempo
- Cracked ActorDavid BowieE minor127BPM
- Voulez‐vousABBAE minor127BPM
- Hail CaesarAC/DCE minor126BPM
- My SameAdeleE minor127BPM
- Heart Upon My SleeveAviciiE minor126BPM
- Bring Em Back AliveAudioslaveE minor127BPM
- Too CloseAlex ClareE minor126BPM
- Woman From TokyoDeep PurpleE minor127BPM
- The Sheltering SkyKing CrimsonE minor125BPM
- Step by StepNew Kids on the BlockE minor125BPM
Recordings in E minor, ordered by how near their tempo is to 126 BPM. A calculation, not a recommendation.
All songs in E minorAll songs at 126 BPME minor at 120–129 BPMDaft Punk
MusicBrainz collapses 10 recording ids into this one. Recording id 0a6e234d-0c9d-41e0-bce7-5c0ca09befbd.