Metallica · Master of Puppets
Leper Messiah
Leper Messiah is in E minor at 139 beats per minute.
Tempo
139 BPM · Allegromedian of 159 analyses · 138.9–139.1 across the middle eight tenths- Key
- E minor1 sharp · the key most of the analyses agreed on
- Agreement
- 81%share of analyses that agreed
- Analyses
- 159people who ran the extractor
- One beat
- 431.7milliseconds, 60,000 ÷ BPM
- Tuning
- 437.5Hz · -10 cents from A 440
- Dynamics
- 2.21dB the level wanders from its average
- Loudness
- 0.962Essentia's 0–1 scale, not dB
- Danceability
- 1.363Essentia'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
159 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 81% — put it in E minor, a key signature of 1 sharp. The tempo printed above is the median of the 159 readings; 99% of them land within 2% of it, and they barely differ at all.
At 139 BPM one beat lasts 431.7 milliseconds, so a sixteenth note is 107.9 ms and a dotted eighth 323.7 ms — the delay times for this recording. Counted half as fast it is 69.5 BPM, counted twice as fast 278. A score would mark that Allegro, by the ranges this site uses.
The analyses put the reference pitch of the recording at 437.5 Hz, which is 10 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 2.21 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 0.962 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 139 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1726.6 | 0.58 |
| Half note | 2 | 863.3 | 1.16 |
| Dotted quarter | 1.5 | 647.5 | 1.54 |
| Quarter note (one beat) | 1 | 431.7 | 2.32 |
| Quarter triplet | 0.667 | 287.8 | 3.48 |
| Dotted eighth | 0.75 | 323.7 | 3.09 |
| Eighth note | 0.5 | 215.8 | 4.63 |
| Eighth triplet | 0.333 | 143.9 | 6.95 |
| Dotted sixteenth | 0.375 | 161.9 | 6.18 |
| Sixteenth note | 0.25 | 107.9 | 9.27 |
| Sixteenth triplet | 0.167 | 71.9 | 13.9 |
| Thirty-second note | 0.125 | 54 | 18.53 |
Half time 69.5 BPM · double time 278 BPM. Every row is one beat (431.7 ms) times the fraction in the second column.
Closest in key and tempo
- Down to the WaterlineDire StraitsE minor139BPM
- DenisBlondieE minor139BPM
- Goon SquadElvis Costello & The AttractionsE minor139BPM
- TroubleColdplayE minor140BPM
- Learning to LiveDream TheaterE minor140BPM
- AnthemRushE minor140BPM
- Eleanor RigbyThe BeatlesE minor137BPM
- Knights of CydoniaMuseE minor137BPM
- Human After AllDaft PunkE minor136BPM
- [Grey Stripe]Aphex TwinE minor136BPM
Recordings in E minor, ordered by how near their tempo is to 139 BPM. A calculation, not a recommendation.
All songs in E minorAll songs at 139 BPME minor at 130–139 BPMMetallica
MusicBrainz collapses 91 recording ids into this one. Recording id 2d9a5b40-f5e6-4499-ab7a-567fe3b42ab9.