Queen · Sheer Heart Attack

Killer Queen

Killer Queen is in B flat major at 117.8 beats per minute.

4080120160200

Tempo

118 BPM · Moderatomedian of 143 analyses · 117.7–117.8 across the middle eight tenths
Key
B♭ major2 flats · the key most of the analyses agreed on
Agreement
100%share of analyses that agreed
Analyses
143people who ran the extractor
One beat
509.3milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
3.97dB the level wanders from its average
Loudness
0.806Essentia's 0–1 scale, not dB
Danceability
1.061Essentia'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

143 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in B flat major, a key signature of 2 flats. The tempo printed above is the median of the 143 readings; 100% of them land within 2% of it, and they barely differ at all.

At 117.8 BPM one beat lasts 509.3 milliseconds, so a sixteenth note is 127.3 ms and a dotted eighth 382 ms — the delay times for this recording. Counted half as fast it is 58.9 BPM, counted twice as fast 235.6. A score would mark that Moderato, 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 3.97 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 0.806 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 B flat 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 B♭ major

Each of these differs from B♭ 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 118 BPM

Note valueBeatsMillisecondsHertz
Whole note42037.40.49
Half note21018.70.98
Dotted quarter1.57641.31
Quarter note (one beat)1509.31.96
Quarter triplet0.667339.62.95
Dotted eighth0.753822.62
Eighth note0.5254.73.93
Eighth triplet0.333169.85.89
Dotted sixteenth0.3751915.24
Sixteenth note0.25127.37.85
Sixteenth triplet0.16784.911.78
Thirty-second note0.12563.715.71

Half time 58.9 BPM · double time 235.6 BPM. Every row is one beat (509.3 ms) times the fraction in the second column.

Closest in key and tempo

  1. Without YouMötley CrüeB♭ major118BPM
  2. Blue JeansLana Del ReyB♭ major118BPM
  3. ThirteenBig StarB♭ major118BPM
  4. CastorDaft PunkB♭ major118BPM
  5. I Don’t Like It, I Love ItFlo Rida feat. Robin Thicke & Verdine WhiteB♭ major118BPM
  6. Another Lonely DayBen HarperB♭ major118BPM
  7. MaybelleneChuck BerryB♭ major117BPM
  8. The ChangelingThe DoorsB♭ major118BPM
  9. Running AwayBob Marley & The WailersB♭ major118BPM
  10. 1999PrinceB♭ major119BPM

Recordings in B flat major, ordered by how near their tempo is to 118 BPM. A calculation, not a recommendation.

All songs in B flat majorAll songs at 118 BPMB♭ major at 110–119 BPMQueen

MusicBrainz collapses 93 recording ids into this one. Recording id 7b3d96c9-3e22-4337-be32-f8a26b816685.