Michael Jackson · Bad
Speed Demon
Speed Demon is in C major at 98.9 beats per minute.
Tempo
99 BPM · Andantemedian of 201 analyses · 98.9–98.9 across the middle eight tenths- Key
- C majorno sharps and no flats · the key most of the analyses agreed on
- Agreement
- 100%share of analyses that agreed
- Analyses
- 201people who ran the extractor
- One beat
- 606.7milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 4.06dB the level wanders from its average
- Loudness
- 0.901Essentia's 0–1 scale, not dB
- Danceability
- 1.318Essentia'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
201 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in C major, a key signature of no sharps and no flats. The tempo printed above is the median of the 201 readings; 100% of them land within 2% of it, and they barely differ at all.
At 98.9 BPM one beat lasts 606.7 milliseconds, so a sixteenth note is 151.7 ms and a dotted eighth 455 ms — the delay times for this recording. Counted half as fast it is 49.5 BPM, counted twice as fast 197.8. A score would mark that Andante, 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 4.06 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 0.901 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 C 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 C major
Each of these differs from C 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 99 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 2426.7 | 0.41 |
| Half note | 2 | 1213.3 | 0.82 |
| Dotted quarter | 1.5 | 910 | 1.1 |
| Quarter note (one beat) | 1 | 606.7 | 1.65 |
| Quarter triplet | 0.667 | 404.4 | 2.47 |
| Dotted eighth | 0.75 | 455 | 2.2 |
| Eighth note | 0.5 | 303.3 | 3.3 |
| Eighth triplet | 0.333 | 202.2 | 4.95 |
| Dotted sixteenth | 0.375 | 227.5 | 4.4 |
| Sixteenth note | 0.25 | 151.7 | 6.59 |
| Sixteenth triplet | 0.167 | 101.1 | 9.89 |
| Thirty-second note | 0.125 | 75.8 | 13.19 |
Half time 49.5 BPM · double time 197.8 BPM. Every row is one beat (606.7 ms) times the fraction in the second column.
Closest in key and tempo
- Unchained MelodyThe Righteous BrothersC major99BPM
- Good Times, Bad TimesThe Rolling StonesC major99BPM
- BurnDeep PurpleC major99BPM
- Boris the SpiderThe WhoC major99BPM
- Hello GoodbyeThe BeatlesC major99BPM
- Misty Morning, Albert BridgeThe PoguesC major98BPM
- The Long RunEaglesC major100BPM
- As Long as You Love MeBackstreet BoysC major98BPM
- Take the Money and RunSteve Miller BandC major98BPM
- It Ain't MeKygo & Selena GomezC major100BPM
Recordings in C major, ordered by how near their tempo is to 99 BPM. A calculation, not a recommendation.
All songs in C majorAll songs at 99 BPMC major at 90–99 BPMMichael Jackson
MusicBrainz collapses 6 recording ids into this one. Recording id a74b328a-dff5-471b-95e0-805a4f14713e.