TempoPeek

Def Leppard · Pyromania

Rock! Rock! (Till You Drop)

Rock! Rock! (Till You Drop) is in D minor at 133.1 beats per minute.

4080120160200

Tempo

133 BPM · Allegromedian of 163 analyses · 113.7–137.2 across the middle eight tenths
Key
D minor1 flat · the key most of the analyses agreed on
Agreement
69%share of analyses that agreed
Analyses
163people who ran the extractor
One beat
450.8milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
2.62dB the level wanders from its average
Loudness
0.909Essentia's 0–1 scale, not dB
Danceability
1.307Essentia'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

163 independent analyses of this recording were submitted to AcousticBrainz. A bare majority of them — 69% — put it in D minor, a key signature of 1 flat. The tempo printed above is the median of the 163 readings; 73% of them land within 2% of it, and the middle eight tenths of them run from 113.7 to 137.2 BPM.

At 133.1 BPM one beat lasts 450.8 milliseconds, so a sixteenth note is 112.7 ms and a dotted eighth 338.1 ms — the delay times for this recording. Counted half as fast it is 66.6 BPM, counted twice as fast 266.2. 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 2.62 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 0.909 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 133 BPM

Note valueBeatsMillisecondsHertz
Whole note41803.20.55
Half note2901.61.11
Dotted quarter1.5676.21.48
Quarter note (one beat)1450.82.22
Quarter triplet0.667300.53.33
Dotted eighth0.75338.12.96
Eighth note0.5225.44.44
Eighth triplet0.333150.36.66
Dotted sixteenth0.3751695.92
Sixteenth note0.25112.78.87
Sixteenth triplet0.16775.113.31
Thirty-second note0.12556.317.75

Half time 66.6 BPM · double time 266.2 BPM. Every row is one beat (450.8 ms) times the fraction in the second column.

Closest in key and tempo

  1. It Ain’t EasyDavid BowieD minor133BPM
  2. Move OverJanis JoplinD minor133BPM
  3. The Devil Went Down to GeorgiaThe Charlie Daniels BandD minor133BPM
  4. In a LifetimeClannad & BonoD minor133BPM
  5. Movin’ Out (Anthony’s Song)Billy JoelD minor133BPM
  6. Lay All Your Love on MeABBAD minor133BPM
  7. Cotton Eye JoeRednexD minor132BPM
  8. RectifierDaft PunkD minor132BPM
  9. Boogie WonderlandEarth, Wind & Fire with The EmotionsD minor132BPM
  10. March of the PigsNine Inch NailsD minor135BPM

Recordings in D minor, ordered by how near their tempo is to 133 BPM. A calculation, not a recommendation.

All songs in D minorAll songs at 133 BPMD minor at 130–139 BPMDef Leppard

MusicBrainz collapses 20 recording ids into this one. Recording id cc95e95b-bb19-43a8-9be0-6cdffe31d612.