TempoPeek

Bee Gees · Still Waters (Run Deep)

Night Fever

Night Fever is in B major at 109.2 beats per minute.

4080120160200

Tempo

109 BPM · Moderatomedian of 510 analyses · 109.2–112.3 across the middle eight tenths
Key
B major5 sharps · the key most of the analyses agreed on
Agreement
98%share of analyses that agreed
Analyses
510people who ran the extractor
One beat
549.5milliseconds, 60,000 ÷ BPM
Tuning
444.9Hz · +19 cents from A 440
Dynamics
3.85dB the level wanders from its average
Loudness
0.896Essentia's 0–1 scale, not dB
Danceability
1.475Essentia'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

510 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 98% — put it in B major, a key signature of 5 sharps. The tempo printed above is the median of the 510 readings; 88% of them land within 2% of it, and the middle eight tenths of them run from 109.2 to 112.3 BPM.

At 109.2 BPM one beat lasts 549.5 milliseconds, so a sixteenth note is 137.4 ms and a dotted eighth 412.1 ms — the delay times for this recording. Counted half as fast it is 54.6 BPM, counted twice as fast 218.4. A score would mark that Moderato, by the ranges this site uses.

The analyses put the reference pitch of the recording at 444.9 Hz, which is 19 cents above 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 3.85 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 0.896 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 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 109 BPM

Note valueBeatsMillisecondsHertz
Whole note42197.80.45
Half note21098.90.91
Dotted quarter1.5824.21.21
Quarter note (one beat)1549.51.82
Quarter triplet0.667366.32.73
Dotted eighth0.75412.12.43
Eighth note0.5274.73.64
Eighth triplet0.333183.25.46
Dotted sixteenth0.3752064.85
Sixteenth note0.25137.47.28
Sixteenth triplet0.16791.610.92
Thirty-second note0.12568.714.56

Half time 54.6 BPM · double time 218.4 BPM. Every row is one beat (549.5 ms) times the fraction in the second column.

Closest in key and tempo

  1. Guns and RosesLana Del ReyB major109BPM
  2. Macy’s Day ParadeGreen DayB major109BPM
  3. Amerykahn PromiseErykah BaduB major109BPM
  4. Money Power GloryLana Del ReyB major110BPM
  5. I Miss Youblink‐182B major110BPM
  6. Take You HomeDidoB major110BPM
  7. If I Could Turn Back TimeCherB major108BPM
  8. GirlsThe 1975B major108BPM
  9. For EmmaBon IverB major111BPM
  10. Gettin’ Jiggy Wit ItWill SmithB major108BPM

Recordings in B major, ordered by how near their tempo is to 109 BPM. A calculation, not a recommendation.

All songs in B majorAll songs at 109 BPMB major at 100–109 BPMBee Gees

MusicBrainz collapses 21 recording ids into this one. Recording id 8bb16130-76a1-49bb-97a5-64ffd80b4565.