ZZ Top · Afterburner

Planet of Women

Planet of Women is in E minor at 151.4 beats per minute.

4080120160200

Tempo

151 BPM · Allegromedian of 211 analyses · 151.4–151.6 across the middle eight tenths
Key
E minor1 sharp · the key most of the analyses agreed on
Agreement
83%share of analyses that agreed
Analyses
211people who ran the extractor
One beat
396.3milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
2.33dB the level wanders from its average
Loudness
0.958Essentia's 0–1 scale, not dB
Danceability
1.316Essentia'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

211 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 83% — put it in E minor, a key signature of 1 sharp. The tempo printed above is the median of the 211 readings; 100% of them land within 2% of it, and they barely differ at all.

At 151.4 BPM one beat lasts 396.3 milliseconds, so a sixteenth note is 99.1 ms and a dotted eighth 297.2 ms — the delay times for this recording. Counted half as fast it is 75.7 BPM, counted twice as fast 302.8. 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 2.33 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 0.958 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 151 BPM

Note valueBeatsMillisecondsHertz
Whole note41585.20.63
Half note2792.61.26
Dotted quarter1.5594.51.68
Quarter note (one beat)1396.32.52
Quarter triplet0.667264.23.79
Dotted eighth0.75297.23.36
Eighth note0.5198.25.05
Eighth triplet0.333132.17.57
Dotted sixteenth0.375148.66.73
Sixteenth note0.2599.110.09
Sixteenth triplet0.16766.115.14
Thirty-second note0.12549.520.19

Half time 75.7 BPM · double time 302.8 BPM. Every row is one beat (396.3 ms) times the fraction in the second column.

Closest in key and tempo

  1. StopPink FloydE minor151BPM
  2. [Parallel Stripes]Aphex TwinE minor151BPM
  3. The TrialPink FloydE minor152BPM
  4. ImaginaryEvanescenceE minor150BPM
  5. Shake a LegAC/DCE minor153BPM
  6. A Woman’s WorthAlicia KeysE minor150BPM
  7. Get in My Car50 CentE minor150BPM
  8. ReadymadeRed Hot Chili PeppersE minor150BPM
  9. Private InvestigationsDire StraitsE minor153BPM
  10. The Better Life3 Doors DownE minor153BPM

Recordings in E minor, ordered by how near their tempo is to 151 BPM. A calculation, not a recommendation.

All songs in E minorAll songs at 151 BPME minor at 150–159 BPMZZ Top

MusicBrainz collapses 8 recording ids into this one. Recording id 0c12445f-cee6-4798-a1e6-9f659390b04c.