TempoPeek

Britney Spears · Blackout

Piece of Me

Piece of Me is in F sharp major at 114.9 beats per minute.

4080120160200

Tempo

115 BPM · Moderatomedian of 208 analyses · 114.9–115 across the middle eight tenths
Key
F♯ major6 sharps · the key most of the analyses agreed on
Agreement
95%share of analyses that agreed
Analyses
208people who ran the extractor
One beat
522.2milliseconds, 60,000 ÷ BPM
Tuning
441.3Hz · +5 cents from A 440
Dynamics
3.67dB the level wanders from its average
Loudness
0.916Essentia's 0–1 scale, not dB
Danceability
1.385Essentia'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

208 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 95% — put it in F sharp major, a key signature of 6 sharps. The tempo printed above is the median of the 208 readings; 97% of them land within 2% of it, and they barely differ at all.

At 114.9 BPM one beat lasts 522.2 milliseconds, so a sixteenth note is 130.5 ms and a dotted eighth 391.6 ms — the delay times for this recording. Counted half as fast it is 57.5 BPM, counted twice as fast 229.8. A score would mark that Moderato, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441.3 Hz, which is 5 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 3.67 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 0.916 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 F sharp 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 F♯ major

Each of these differs from F♯ 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 115 BPM

Note valueBeatsMillisecondsHertz
Whole note42088.80.48
Half note21044.40.96
Dotted quarter1.5783.31.28
Quarter note (one beat)1522.21.92
Quarter triplet0.667348.12.87
Dotted eighth0.75391.62.55
Eighth note0.5261.13.83
Eighth triplet0.333174.15.75
Dotted sixteenth0.375195.85.11
Sixteenth note0.25130.57.66
Sixteenth triplet0.1678711.49
Thirty-second note0.12565.315.32

Half time 57.5 BPM · double time 229.8 BPM. Every row is one beat (522.2 ms) times the fraction in the second column.

Closest in key and tempo

  1. Heaven Knows I’m Miserable NowThe SmithsF♯ major114BPM
  2. What You NeedINXSF♯ major116BPM
  3. A Murder of OneCounting CrowsF♯ major116BPM
  4. Everyday Is a Winding RoadSheryl CrowF♯ major113BPM
  5. Little WingStevie Ray Vaughan and Double TroubleF♯ major117BPM
  6. Harm of WillBjörkF♯ major117BPM
  7. InkColdplayF♯ major112BPM
  8. All These Things That I’ve DoneThe KillersF♯ major118BPM
  9. Man on the CornerGenesisF♯ major112BPM
  10. Rats in the CellarAerosmithF♯ major112BPM

Recordings in F sharp major, ordered by how near their tempo is to 115 BPM. A calculation, not a recommendation.

All songs in F sharp majorAll songs at 115 BPMF♯ major at 110–119 BPMBritney Spears

MusicBrainz collapses 9 recording ids into this one. Recording id dd7cd19f-6c32-4a6d-bd97-cc7b5862c957.