Ozzy Osbourne · Blizzard of Ozz
Mr. Crowley
Mr. Crowley is in D minor at 108.6 beats per minute.
Tempo
109 BPM · Moderatomedian of 136 analyses · 108.5–108.8 across the middle eight tenths- Key
- D minor1 flat · the key most of the analyses agreed on
- Agreement
- 87%share of analyses that agreed
- Analyses
- 136people who ran the extractor
- One beat
- 552.5milliseconds, 60,000 ÷ BPM
- Tuning
- 438.7Hz · -5 cents from A 440
- Dynamics
- 3.67dB the level wanders from its average
- Loudness
- 0.737Essentia's 0–1 scale, not dB
- Danceability
- 1.157Essentia'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
136 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 87% — put it in D minor, a key signature of 1 flat. The tempo printed above is the median of the 136 readings; 100% of them land within 2% of it, and they barely differ at all.
At 108.6 BPM one beat lasts 552.5 milliseconds, so a sixteenth note is 138.1 ms and a dotted eighth 414.4 ms — the delay times for this recording. Counted half as fast it is 54.3 BPM, counted twice as fast 217.2. A score would mark that Moderato, by the ranges this site uses.
The analyses put the reference pitch of the recording at 438.7 Hz, which is 5 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 3.67 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 0.737 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 109 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 2209.9 | 0.45 |
| Half note | 2 | 1105 | 0.9 |
| Dotted quarter | 1.5 | 828.7 | 1.21 |
| Quarter note (one beat) | 1 | 552.5 | 1.81 |
| Quarter triplet | 0.667 | 368.3 | 2.72 |
| Dotted eighth | 0.75 | 414.4 | 2.41 |
| Eighth note | 0.5 | 276.2 | 3.62 |
| Eighth triplet | 0.333 | 184.2 | 5.43 |
| Dotted sixteenth | 0.375 | 207.2 | 4.83 |
| Sixteenth note | 0.25 | 138.1 | 7.24 |
| Sixteenth triplet | 0.167 | 92.1 | 10.86 |
| Thirty-second note | 0.125 | 69.1 | 14.48 |
Half time 54.3 BPM · double time 217.2 BPM. Every row is one beat (552.5 ms) times the fraction in the second column.
Closest in key and tempo
- Hoochie Coochie ManThe Allman Brothers BandD minor109BPM
- Kiss With a FistFlorence + the MachineD minor108BPM
- Hang On to Your LoveSadeD minor108BPM
- And the Cradle Will Rock…Van HalenD minor108BPM
- Too ShyKajagoogooD minor108BPM
- Can’t Feel My FaceThe WeekndD minor108BPM
- SchismToolD minor108BPM
- Enemy in MeShotgun MessiahD minor108BPM
- Why Can’t I Be You?The CureD minor108BPM
- Why You Wanna Trip on MeMichael JacksonD minor110BPM
Recordings in D minor, ordered by how near their tempo is to 109 BPM. A calculation, not a recommendation.
All songs in D minorAll songs at 109 BPMD minor at 100–109 BPMOzzy Osbourne
MusicBrainz collapses 63 recording ids into this one. Recording id 9c1667d6-84cc-4677-aa92-e6dacf03b81a.