TempoPeek

Nirvana · Bleach

Swap Meet

Swap Meet is in F major at 146.6 beats per minute.

4080120160200

Tempo

147 BPM · Allegromedian of 157 analyses · 146.5–146.7 across the middle eight tenths
Key
F major1 flat · the key most of the analyses agreed on
Agreement
94%share of analyses that agreed
Analyses
157people who ran the extractor
One beat
409.3milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
1.87dB the level wanders from its average
Loudness
0.963Essentia's 0–1 scale, not dB
Danceability
1.28Essentia'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

157 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 94% — put it in F major, a key signature of 1 flat. The tempo printed above is the median of the 157 readings; 98% of them land within 2% of it, and they barely differ at all.

At 146.6 BPM one beat lasts 409.3 milliseconds, so a sixteenth note is 102.3 ms and a dotted eighth 307 ms — the delay times for this recording. Counted half as fast it is 73.3 BPM, counted twice as fast 293.2. 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 1.87 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 0.963 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 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 147 BPM

Note valueBeatsMillisecondsHertz
Whole note41637.10.61
Half note2818.61.22
Dotted quarter1.5613.91.63
Quarter note (one beat)1409.32.44
Quarter triplet0.667272.93.67
Dotted eighth0.753073.26
Eighth note0.5204.64.89
Eighth triplet0.333136.47.33
Dotted sixteenth0.375153.56.52
Sixteenth note0.25102.39.77
Sixteenth triplet0.16768.214.66
Thirty-second note0.12551.219.55

Half time 73.3 BPM · double time 293.2 BPM. Every row is one beat (409.3 ms) times the fraction in the second column.

Closest in key and tempo

  1. You Got That RightLynyrd SkynyrdF major147BPM
  2. The ScientistColdplayF major147BPM
  3. Walking on the MoonThe PoliceF major146BPM
  4. LevonElton JohnF major146BPM
  5. a lot21 SavageF major146BPM
  6. DebraBeckF major147BPM
  7. Take This LongingLeonard CohenF major147BPM
  8. Shake It UpThe CarsF major148BPM
  9. Hounds of LoveKate BushF major146BPM
  10. I Threw It All AwayBob DylanF major145BPM

Recordings in F major, ordered by how near their tempo is to 147 BPM. A calculation, not a recommendation.

All songs in F majorAll songs at 147 BPMF major at 140–149 BPMNirvana

MusicBrainz collapses 13 recording ids into this one. Recording id c9972a41-2ae8-43f6-9822-ba2fec7e50d1.