TempoPeek

Jay‐Z · American Gangster

Roc Boys (And the Winner Is)…

Roc Boys (And the Winner Is)… is in E major at 94.4 beats per minute.

4080120160200

Tempo

94 BPM · Andantemedian of 135 analyses · 94.3–94.4 across the middle eight tenths
Key
E major4 sharps · the key most of the analyses agreed on
Agreement
99%share of analyses that agreed
Analyses
135people who ran the extractor
One beat
635.6milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
3.01dB the level wanders from its average
Loudness
0.969Essentia's 0–1 scale, not dB
Danceability
1.754Essentia'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

135 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 99% — put it in E major, a key signature of 4 sharps. The tempo printed above is the median of the 135 readings; 99% of them land within 2% of it, and they barely differ at all.

At 94.4 BPM one beat lasts 635.6 milliseconds, so a sixteenth note is 158.9 ms and a dotted eighth 476.7 ms — the delay times for this recording. Counted half as fast it is 47.2 BPM, counted twice as fast 188.8. 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 3.01 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 0.969 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 E 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 E major

Each of these differs from E 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 94 BPM

Note valueBeatsMillisecondsHertz
Whole note42542.40.39
Half note21271.20.79
Dotted quarter1.5953.41.05
Quarter note (one beat)1635.61.57
Quarter triplet0.667423.72.36
Dotted eighth0.75476.72.1
Eighth note0.5317.83.15
Eighth triplet0.333211.94.72
Dotted sixteenth0.375238.34.2
Sixteenth note0.25158.96.29
Sixteenth triplet0.167105.99.44
Thirty-second note0.12579.412.59

Half time 47.2 BPM · double time 188.8 BPM. Every row is one beat (635.6 ms) times the fraction in the second column.

Closest in key and tempo

  1. Gift From VirgoBeyoncéE major94BPM
  2. Flesh for FantasyBilly IdolE major95BPM
  3. Whiskey on the RocksAC/DCE major95BPM
  4. From TimeDrake feat. Jhené AikoE major94BPM
  5. Eh, Eh (Nothing Else I Can Say)Lady GagaE major94BPM
  6. ClosedownThe CureE major94BPM
  7. Ms. JacksonOutKastE major95BPM
  8. Why WorryDire StraitsE major94BPM
  9. Hey BabyNo Doubt featuring Bounty KillerE major94BPM
  10. Hurting Each OtherCarpentersE major94BPM

Recordings in E major, ordered by how near their tempo is to 94 BPM. A calculation, not a recommendation.

All songs in E majorAll songs at 94 BPME major at 90–99 BPMJay‐Z

MusicBrainz collapses 3 recording ids into this one. Recording id 3fba63d8-5ea4-4a7d-9374-79c764a2c46d.