TempoPeek

21 Savage · The Slaughter Tape

Woah

Woah is in B flat major at 145.9 beats per minute.

4080120160200

Tempo

146 BPM · Allegromedian of 211 analyses · 145.9–146 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
211people who ran the extractor
One beat
411.2milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
3.89dB the level wanders from its average
Loudness
0.868Essentia's 0–1 scale, not dB
Danceability
0.924Essentia'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

211 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 211 readings; 100% of them land within 2% of it, and they barely differ at all.

At 145.9 BPM one beat lasts 411.2 milliseconds, so a sixteenth note is 102.8 ms and a dotted eighth 308.4 ms — the delay times for this recording. Counted half as fast it is 73 BPM, counted twice as fast 291.8. 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 3.89 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 0.868 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 146 BPM

Note valueBeatsMillisecondsHertz
Whole note416450.61
Half note2822.51.22
Dotted quarter1.5616.91.62
Quarter note (one beat)1411.22.43
Quarter triplet0.667274.23.65
Dotted eighth0.75308.43.24
Eighth note0.5205.64.86
Eighth triplet0.333137.17.3
Dotted sixteenth0.375154.26.48
Sixteenth note0.25102.89.73
Sixteenth triplet0.16768.514.59
Thirty-second note0.12551.419.45

Half time 73 BPM · double time 291.8 BPM. Every row is one beat (411.2 ms) times the fraction in the second column.

Closest in key and tempo

  1. Look at Me NowChris Brown feat. Lil Wayne & Busta RhymesB♭ major146BPM
  2. (Remember the Days of the) Old SchoolyardCat StevensB♭ major146BPM
  3. Perfect DayLou ReedB♭ major147BPM
  4. IsraelitesDesmond Dekker & the AcesB♭ major147BPM
  5. If Looks Could KillHeartB♭ major145BPM
  6. Marry YouBruno MarsB♭ major145BPM
  7. Highway 61 RevisitedBob DylanB♭ major147BPM
  8. Monkey ManAmy WinehouseB♭ major147BPM
  9. Smokin & DrinkinDanny BrownB♭ major147BPM
  10. Holy GrailJay‐Z feat. Justin TimberlakeB♭ major145BPM

Recordings in B flat major, ordered by how near their tempo is to 146 BPM. A calculation, not a recommendation.

All songs in B flat majorAll songs at 146 BPMB♭ major at 140–149 BPM21 Savage

MusicBrainz collapses 1 recording id into this one. Recording id f44070e0-49d6-4313-af44-f8b0f691345f.