TempoPeek

Beyoncé · I Am… Sasha Fierce

Halo

Halo is in A major at 80 beats per minute.

4080120160200

Tempo

80 BPM · Andantemedian of 244 analyses · 80–80.1 across the middle eight tenths
Key
A major3 sharps · the key most of the analyses agreed on
Agreement
100%share of analyses that agreed
Analyses
244people who ran the extractor
One beat
750milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
3.92dB the level wanders from its average
Loudness
0.87Essentia's 0–1 scale, not dB
Danceability
1.036Essentia'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

244 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in A major, a key signature of 3 sharps. The tempo printed above is the median of the 244 readings; 100% of them land within 2% of it, and they barely differ at all.

At 80 BPM one beat lasts 750 milliseconds, so a sixteenth note is 187.5 ms and a dotted eighth 562.5 ms — the delay times for this recording. Counted half as fast it is 40 BPM, counted twice as fast 160. A score would mark that Andante, 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 3.92 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 0.87 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 A 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 A major

Each of these differs from A 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 80 BPM

Note valueBeatsMillisecondsHertz
Whole note430000.33
Half note215000.67
Dotted quarter1.511250.89
Quarter note (one beat)17501.33
Quarter triplet0.6675002
Dotted eighth0.75562.51.78
Eighth note0.53752.67
Eighth triplet0.3332504
Dotted sixteenth0.375281.33.56
Sixteenth note0.25187.55.33
Sixteenth triplet0.1671258
Thirty-second note0.12593.810.67

Half time 40 BPM · double time 160 BPM. Every row is one beat (750 ms) times the fraction in the second column.

The same title by somebody else

  1. HaloFoo FightersG major131BPM
  2. HaloCage the ElephantB♭ major116BPM

Matched on the title alone, so this list can hold a different song that happens to share a name. Nothing here claims one is a cover of the other.

Closest in key and tempo

  1. Blue ChristmasCéline DionA major80BPM
  2. Twistin’ the Night AwaySam CookeA major80BPM
  3. OmahaCounting CrowsA major81BPM
  4. Painter SongNorah JonesA major79BPM
  5. Heal the WorldMichael JacksonA major81BPM
  6. In the CityEaglesA major81BPM
  7. Take Me Home, Country RoadsJohn DenverA major82BPM
  8. Teenage JailEaglesA major77BPM
  9. Shooting StarBad CompanyA major83BPM
  10. Dreamin’ of YouCéline DionA major83BPM

Recordings in A major, ordered by how near their tempo is to 80 BPM. A calculation, not a recommendation.

All songs in A majorAll songs at 80 BPMA major at 80–89 BPMBeyoncé

MusicBrainz collapses 9 recording ids into this one. Recording id 899a043d-67bc-420c-85ea-6fee705baeb3.